Acetate Buffer

RT	11482-42	Acetate Buffer, 0.2M, pH 4.2	500 ml	18.00	Add to Cart
RT	11482-50	Acetate Buffer, 0.2M, pH 5.0	500 ml	18.00	Add to Cart
RT	11482-56	Acetate Buffer, 0.2M, pH 5.6	500 ml	18.00	Add to Cart

Acetic Acid, Glacial, Reagent A.C.S

C2H4O2 F.W. 60.05 CAS 64-19-7

Assay min

99.7%

RT	10040	Acetic Acid, Glacial	500 ml	58.00	Add to Cart
RT	10041	Acetic Acid, Glacial	2.5 L	115.00	Add to Cart

Acetic Acid, Aqueous Solution

Prepared from acetic acid glacial with de-ionized water

RT	10042-02	Acetic Acid, 0.2% (v/v) Solution	18.00	500 ml	Add to Cart
RT	10042-05	Acetic Acid, 0.5% (v/v) Solution	19.00	500 ml	Add to Cart
RT	10042-10	Acetic Acid, 1.0% (v/v) Solution	21.00	500 ml	Add to Cart
RT	10042-50	Acetic Acid, 5.0% (v/v) Solution	29.00	500 ml	Add to Cart

Acetone, Reagent, A.C.S.

CH₃COCH₃   F.W. 58.08   CAS #67-64-1

A.C.S. Specifications:

Assay		Min 99.5%
Aldehyde (as HCHO)		0.002%
Color		Max. APHA 10
Density (G/ml) at 25°C		Max. 0.7857
Titratable Acid		0.0003 meq/g
Titratable Base		0.0006 meq/g
Isopropyl Alchohol		0.05%
Methanol (CH3OH)		0.05%
Residue after Evaporation		0.001%
Solubilty in water		To pass test
Substances Reducing Permanganate		To pass test
Water		0.5%

RT	10000		1qt. (946ml)	13.00	Add to Cart
RT			4x1 qt.	48.00	Add to Cart
RT	10012		250ml	7.00	Add to Cart
RT	10014		4x250ml	20.00	Add to Cart

Acetone: Alcohol, 1:1 & Buffered Acetone

RT	10017	Acetone: Alcohol, 1:1	500 ml	20.00	Add to Cart
RT	10018	Buffered Acetone Fixative	500 ml	24.00	Add to Cart

Acid Alcohols

An acidified alcohol solution for the differentiation of regressive stains.

Acid Alcohol, 0.5% HCl in 70% Alcohol	26071
Acid Alcohol, 1% HCl in 70% Alcohol	26072

RT	26071-01	Acid Alcohol, 0.5% HCl in 70% Alcohol	1 L	34.00	Add to Cart
RT	26071-04	Acid Alcohol, 0.5% HCl in 70% Alcohol	4x1 L	117.00	Add to Cart
RT	26072-01	Acid Alcohol, 1% HCl in 70% Alcohol	1 L	29.00	Add to Cart
RT	26072-04	Acid Alcohol, 1% HCl in 70% Alcohol	4x1 L	102.00	Add to Cart
RT	26073-01	Acid Alcohol, 1% HCl in 95% Alcohol	1 L	38.00	Add to Cart
RT	26073-04	Acid Alcohol, 1% HCl in 95% Alcohol	4x1 L	122.00	Add to Cart

Ethyl Alcohol, Specially Denatured

C₂H₅OH   F.W. 46.07   CAS #64-17-5

Blended 95% Ethanol and 5% Methanol

Suitable for all routine histology/cytology preparations.

Specifications:

Evaporation Residue		5ppm max.
Water		0.1%
Filtered SDA-3A		95%

RT	15050		1qt (946ml)	21.00	Add to Cart
RT	15051		4x1qt	76.00	Add to Cart

Ethyl Alcohol, Anhydrous

(Ethanol) - 200 Proof
CH₃CH₂OH   F.W. 46.07   CAS # 64-17-5

Specifications:

Specific Gravity	<0.7942
Purity	>99.9%
Acidity	<0.002%
Water (Karl Fisher)	<0.1%
Non-Volatile Matter	<0.0025%

RT	15055		450ml	18.00*	Add to Cart
RT	15056		4x450ml	68.00*	Add to Cart
RT	15058		1 liter	32.00	Add to Cart

*Tax has already been paid

Alkaline Alcohol

RT	10380	10% NH4OH in 85.5% Alcohol	500 ml	23.00	Add to Cart
RT	10381	1.6% NaCl in 80% Alcohol	500 ml	25.00	Add to Cart
RT	10382	0.2% KOH in 80% Alcohol	500 ml	27.00	Add to Cart

Ammonium Hydroxide, 28% Reagent, A.C.S.

NH₄OH   F.W. 35.05   CAS #1336-21-6 Specific Gravity: 0.91

Assay

28-30%

Specifications:

Residue After Ignition		0.002%
Carbon Dioxide		0.002%
Chloride		0.5 ppm
Phosphate		2 ppm
Sulfate		2 ppm
Heavy Metals		0.5 ppm
Iron		0.2 ppm

RT	10600		450ml	16.00	Add to Cart
RT	10601		4x450ml	58.00	Add to Cart

Antibody Dilution Buffer with Immunoglobulin- Free BSA

This ready-to-use Antibody Dilution Buffer is designed for the dilution of antibodies in all immunoassays, including immunofluorescence, IHC, ELISA, WB. This buffer contains immunoglobulin free BSA and does not contain phosphate, sodium azide, or mercury preservatives. It can be used for the dilution of all antibodies, including peroxidase, and antibodies to phophoproteins. However, it is not suitable for dilution of antibodies to S100 proteins. This buffer contains green food color.

Reagent Supplied: Ready to use buffer

Application: Dilute antibodies, primary or secondary as recommended in the protocol by the manufacturer of these products.

Storage: 2 – 8°C. Diluted antibodies can be stored at 2 – 8°C for several weeks, depending upon the stability of antibodies.

2–8°C	25886-01	Antibody Dilution Buffer, free BSA	100 ml	50.00	Add to Cart
2–8°C	25886-05	Antibody Dilution Buffer, free BSA	500 ml	100.00	Add to Cart
	1227SK	Antigen Preserve Solution VII	1L	150.00

B-5 Fixative

For lymph nodes.

RT	64122-05	B-5 Fixative	500 ml	64.00	Add to Cart
RT	64122-06	B-5 Fixative	1 lt	120.00	Add to Cart
RT	64122-10	B-5 Fixative	4 lt	450.00	Add to Cart

Borate Buffer

RT	11455-78	Borate Buffer, pH 7.8	30.00	500 ml	Add to Cart
RT	11455-82	Borate Buffer, pH 8.2	30.00	500 ml	Add to Cart
RT	11455-90	Borate Buffer, pH 9.0	30.00	500 ml	Add to Cart

Bouin’s Solution

Bouin's solution can be used as a fixation and a staining fluid. Bouin's fixative is excellent for use on biopsy specimens of the gastrointestinal tract. Tissue from the endocrine system are well fixed and many antibodies react well with tissue fixed in Bouin's. Bouin's solution may be used as a routine fixative or a staining solution, but should not be used as a preservative for tissue. Tissue cannot be held in Bouin's solution for extended periods. The maximum fixation time in this solution should be less than 48 hours and should be transferred to alcohol.

Packaged in leak-proof histo-containers, prefilled and ready-to-use.

Formulated with Picric Acid saturated aqueous solution 75%, Formalin (40% aqueous formaldehyde) 25% and Glacial Acetic acid 5% in de-ionized water.

RT	15990-01	Bouin's Fluid	1 L	41.00	Add to Cart
RT	15990-04	Bouin's Fluid	4 L	146.00	Add to Cart

Bouin’s Fluid in Pre-filled cups

RT	15990-10	Bouin's Fluid	50 x 10 ml/cs	76.00	Add to Cart
RT	15990-20	Bouin's Fluid	50 x 20 ml/cs	96.00	Add to Cart
RT	15990-30	Bouin's Fluid	50 x 30 ml/cs	43.00	Add to Cart

For other sizes and configurations of our Bouin’s Solution, click here.

n-Butyl Alcohol, Reagent, A.C.S.

(Butanol)
CH₃CH₂CH₂CH₂OH   F.W. 74.12   CAS # 71-36-3

Specific Gravity:		0.81
Assay		99.4%
Residue after evaporation		0.005%
Titratable acid		0.0008meq/g
Butyl Ether		0.2%
Water		0.1%

RT	11920		450ml	20.00	Add to Cart
RT	11921		4x450ml	72.00	Add to Cart

Carnoy’s Fixatives

Stock solution

RT	64130-05	Carnoy’s Fluid	500ml	26.00	Add to Cart
RT	64130-50	Carnoy’s Fluid Without Chloroform	500ml	24.00	Add to Cart

Cedar Wood Oil

CAS #8000-27-9 Refractive Index @ 20°C 1.504+/-.002

For clearing.

RT

12420

100ml

30.00

Add to Cart

Chloroform, Reagent, A.C.S.

CHCl₃   FW 119.38   CAS #67-66-3

A.C.S. Specifications:

Color (APHA)		10
Density @ 25°C		1.471-1.476
Residue after Evaporation		0.001%
Acetone & Aldehyde (about 0.00%)		To Pass Test
Acid & Chloride		To Pass Test
Free Chlorine (Cl)		To Pass Test
Lead (Pb)		0.05ppm
Subs. darkened by H2SO4		To Pass Test
Suitability for Dithizone Test		To Pass Test

RT	12540		450ml	15.00	Add to Cart
RT	12541		4x450ml	68.00	Add to Cart

Chromic Acid, Reagent, Crystals, A.C.S.

CrO₃   FW 99.99   CAS #1333-82-0

A.C.S. Specifications:

Chloride (Cl)		0.005%
Insoluble Matter		0.01%
Nitrate (NO3)		0.05%
Sodium (Na)		0.2%
Iron, Aluminum, Barium		0.03%
Sulfate (SO4)		0.05%
Assay		98%

RT

12555

100g

44.00

Add to Cart

Chromic Acid 4% Aqueous Solution

RT	12557	Chromic Acid 4% Aqueous Solution	500 ml	23.00	Add to Cart
RT	12558	Chromic Acid 5% Aqueous Solution	500 ml	29.00	Add to Cart

Clearing Solvent Xylene Substitutes

These clearing solvents offer Histology and Cytology laboratories a safer alternative to xylene.

• Contains no xylene or toluene.
• No citrus odor.
• For use in manual and automated systems.

RT

64129-10

Clearing Solvent

1 gal

46.00

Add to Cart

CytoPrep Fixative

CytoPrep Fixative forms a clear protective coating over specimens while fixing cells. It is ideal for cytological smears and it dries within 4 to 6 minutes. Good for safe storage and transportation of slides. It is water soluble and contains no chlorofluorocarbons. Comes in a 4 oz. spray can.

RT	64145-01	CytoPrep Fixative	4 oz	30.00	Add to Cart
RT	64145-12	CytoPrep Fixative	12x4 oz	310.00	Add to Cart

Davidson’s Alcohol Formalin Acetic Acid Fixative (Davidson’s AFA)

A fixative solution prepared from a combination of Ethyl alcohol, Denatured (33%), 37-39% Formalin (22%), Glacial Acetic Acid (11.5%) and water, to preserve samples for Histology and/or In-Situ Hybridizations

RT

64133-10

Davidson's Fixative

1L

35.00

Add to Cart

Modified Davidson’s Fixative

(14% Ethyl Alcohol, Denatured, 37.5% Formalin 37-39%, 6.25% Glacial Acetic Acid, and D.I. Water)

RT

64133-50

Modified Davidson's Fixative

1L

38.00

Add to Cart

RDO Rapid Decalcifier

RDO and RDO Gold were developed with the basic premise of making your work routine quicker and easier without sacraficing the quality and integrity of your samples.

RDO and RDO Gold are remarkably effective multipurpose decacifiers that can be tailored to suit your specific lab routine.

Both RDO and RDO Gold:

• Offer crisp nuclear staining and definition
• Give distinguishable chromatin
• Show great surface decalcification
• Safe enough to be disposed down to lab sink to drain

How is RDO Gold different from the original RDO

• RDO Gold is designated for those biopsies which contain minimal amounts of calcium
• No filtration is required with RDO Gold
• RDO Gold gives stellar morphological representation of bone biopsies
• There is no folding of tissues with RDO Gold
• RDO Gold is clear and non-precipitate

Both RDO and RDO Gold are:

• Far Superior to other Decalcifiers
• Great Cellular Differentiation
• Safe – Non Toxic – Non-Corrosive
• Dilutable
• Microwavable
• Superb Staining Quality
• Biodegradable
• Translucent
• Available in Wide Mouth Liter Bottle

References:

1. Gayle Callis et al. “Dacalcification of Bone: Literature Review and Practical Study of Various Decalcifying Agents, Methods, and Their Effects on Bone Histology”. The J. of Histology, Vol. 21, No. 1, March 1998.
2. Sherley A. Powell, HT (ASCP) HTL. “Method to Facilitate Sectioning Incompletely Decalcified Bone”. Mercer University, School of Medicine. Microtime Georgia, State Newsletter.
3. Becky Scholes, HTL, MT (ASCP).:Bone Marrow Biopsies”. H.I.S.T.O. Iowa State Newsletter.

RT	64143-01	RDO Decalcifier	1 L	20.50
RT	64143-06	RDO Decalcifier	6 x 1 L/cs	102.00
RT	64143-40	RDO Decalcifier	1 gal	42.00
RT	64143-44	RDO Decalcifier	4 x 1 gal/cs	149.00
RT	64144-01	RDO - Gold Decalcifier	1 L	34.00
RT	64144-06	RDO - Gold Decalcifier	6 x 1 L/cs	180.00
RT	64144-40	RDO - Gold Decalcifier	1 gal	66.00
RT	64144-44	RDO - Gold Decalcifier	4 x 1 gal/cs	238.00

Technical Tips and Articles

RDO Rapid Decalcifier

Animal Tissue Techniques
Parafin and Plastic Techniques for Preparation of Bone Marrow Specimen
Bone Marrow Biopsies

Decalcifier

• Ready-to-use.
• For hard specimens.
• Protects cellular structure.
• Minimal interference with subsequent staining.
• For use with human and animal calcified tissue, bone, cartilage and other hard specimens.

RT	64147-01	Decalcifier	1 L	35.00	Add to Cart
RT	64147-06	Decalcifier	6x1 L	192.00	Add to Cart
RT	64147-10	Decalcifier	10 L	176.00	Add to Cart

Deionized Water, Reagent Grade A.C.S.

H₂O F.W. 18.02 CAS #7732-18-5
EMS Reagent Grade Water is typically prepared at 18 megohm/cm specific resistance using a reverse osmosis, mixed deionization, activated filtration and final filtration at 0.2 microns.

Color (APHA)		<+/-5
Bacteriological purity		0 CFUs/L
Residue after evaporation		10ppm
Coliform		negative

RT	22800-01	Deionized Water	1 gal	10.00	Add to Cart
RT	22800-05	Deionized Water	5 gal	42.00	Add to Cart

Ethyl Alcohol

Ethyl Alcohol Anhydrous Denatured, click here.
Ethyl Alcohol Anhydrous, Tax Paid, click here.

Ethylene Glycol Monoethyl Ether

Ethylene Glycol Monoethyl Ether, click here.

Ferric Ammonium Sulfate

RT	15505-40	Ferric Ammonium Sulfate, 4% Aqueous	500 ml	29.00	Add to Cart
RT	15505-50	Ferric Ammonium Sulfate, 5% Aqueous	500 ml	31.00	Add to Cart

Ferric Chloride, Hexahydrate, Reagent, A.C.S.

FeCl₃·6H₂O   F.W. 270.30   CAS #13478-10-9

Assay	97.0-102%
Insoluble Matters.	0.01%
Nitrate (about 0.001%)	To Pass Test
Phosphorous Compound	0.01%
Sulfate	0.01%
Arsenic	0.002%
Copper	0.003%
Zinc	0.003%

References for use:

Membrane stains

• Basic, G., Berwick et al (1963). Hale stain for sialic acid containing mucins. J. Cell Biol.,
  19:223
• Gasic, G., Berwick, et al (1968). Positive and Negative colloidal iron as cell surface
  electron stains. Lab. Invest., 18:63
• Blanquet, P.R. and Loiez, A. (1974). Colloidal iron used at pHs lower than 1 as electron
  stain for surface proteins. J. Histochem. Cytochem., 22:368
• Matukafs, V.J., Panner et al (1967). Studies on ultrastructural identification and
  distribution of protein-polysaccharides in cartilage matrix. J. Cell Biol., 32:365
• Benedetti, E.L. and Emmelot, P. (1967). Studies on plasma membranes IV. The
  Ultrastructural localization and content of sialic acid in plasma membranes isolated from
  rat liver and hepatoma. J. Cell Sci., 2:499
• Rowley, J.R. (1971). Resolution of channels in the exine by translocation of colloidal iron.
  Pro. 29th Ann. EMSA Meet., p.352. Claitor’s Pub. Division, Baton Rouge, LA
• Nicolson, G.L. (1973). Anionic sites of human erythrocyte membranes.I. Effects of trypsin,
  phospholipase C, and pH on the topography of bound positively charged colloidal
  particles. J. Cell Biol., 57:373
• Hendy, R. (1971). Electron microscopy of lipofucsin pigment stained by the Schmorl and
  Fontana technique. Histochemie, 26:311.

RT

15510

Ferric Chloride, Hexahydrate, Reagent,

500g

45.00

Add to Cart

Ferric Chloride 10%, Aqueous Solution

RT	15512-02	Ferric Chloride 2% Aqueous	500 ml	36.00	Add to Cart
RT	15512-10	Ferric Chloride 10% Aqueous	500 ml	36.00	Add to Cart

Fixative/Decalcifier

• A solution that fixes and decalcifies in one step.
• Prevents loss of cellular structure.
• Enhances hematoxylin staining.

RT	64148-01	Fixative/Decalcifier	1 L	42.00	Add to Cart
RT	64148-06	Fixative/Decalcifier	6x1 L	230.00	Add to Cart

Formalde-Fresh Low Odor Solution; Histology Grade

A specially formulated odor-mask which neutralizes the formalin odor without affecting subsequent tissue processing, handling, or staining. Low odor, ready-to-use 10% formalin solution. May be used as a fixative or preservative of specimens. Its shelf life is 24 months.

RT	15678-01	Formalde-Fresh	4 L	74.00	Add to Cart
RT	15678-04	Formalde-Fresh	4x4 L	290.00	Add to Cart

Buffered Formalde-Fresh, Low-Odor 10% Formalin Solution

Low odor, prepared w/v, pH 6.9 to 7.1 at 25°C. 10% formalin in Phosphate buffer according to the A.F.I.P. Manual of Histology. This solution allows for long-term storage of tissue specimens.

RT	15741-01	Low-Odor Formalin 10% Buffered	4 L	58.00	Add to Cart
RT	15741-04	Low-Odor Formalin 10% Buffered	4x4 L	200.00	Add to Cart

Formalin, Neutral, Buffered 10% w/v in Acetate Buffer

Buffered with Sodium Acetate in accordance with the A.F.I.P. manual of Histology. Filtered and ready-to-use.
pH 6.0 to ph 7.1 at 20°C

RT	15738-01	Formalin 10% Buffered in Acetate	1L	18.00	Add to Cart
RT	15738-04	Formalin 10% Buffered in Acetate	4L	49.00	Add to Cart

Formalin, Neutral, Buffered 10% w/v in Phosphate Buffer

Buffered with phosphate in accordance with the A.f.I.P. manual of Histology.Filtered and ready-to-use.
pH 6.9 to 7.1 at 25°C

RT	15740	Formalin 10% Buffered in Phosphate	450ml	12.00	Add to Cart
RT	15740-01	Formalin 10% Buffered in Phosphate	1L	19.00	Add to Cart
RT	15740-04	Formalin 10% Buffered in Phosphate	4L	56.00	Add to cart

TissuePrep Buffered 10% Formalin

Prefilled with 10% formalin Cat# 15740. Ready-to-use in pre-filled cups. Labeled in accordance to OSHA requirements, which gives you immediate information regarding handling and first aid procedures. Pre-measured in wide-mouth, leak-proof, opaque polypropylene containers which limits your exposure to formaldehyde and saves you time.

	Catalog #	Cup Size	Filled	Pack/cs	Price
RT	15742-10	15 ml	10ml	50	77.00	Add to Cart
RT	15742-20	30 ml	20ml	50	98.00	Add to Cart
RT	15742-30	60 ml	30ml	20	44.00	Add to Cart
RT	15742-60	120 ml	60ml	20	48.00	Add to Cart

Formaldehyde, Reagent, A.C.S. (Formalin)

HCHO F.W. 30.03 CAS #50-00-0

Specific Gravity

1.09

A.C.S. Specifications:

Assay		35.5 to 38.0%
Residue after ignition		0.005%
Color (A.P.H.A.)		10
Sulfate (SO4)		0.002%
Heavy Metal (as Pb)		5ppm
Titrate Acid		0.006 meq/g
Chloride (Cl)		5ppm
Iron (Fe)		5ppm

RT	15680		450ml	12.00	Add to Cart
RT	15681		4x450ml	40.00	Add to Cart
RT	15682		1qt(946ml)	22.00	Add to Cart

Formaldehyde, 37%, Microfiltered (Formalin Microfiltered)

HCHO F.W. 30.03 CAS# 50-00-0

Microfiltered with a 0.45 micron membrane; suitable as an EM fixative when a methanol free solution is not necessary.

RT

15686

10x10ml

25.00

Add to Cart

Formaldehyde

(Paraformaldehyde) GLUTARALDEHYDE

Karnovsky’s Fixative Kit, please click here.

RT	15720		kit	17.00	Add to Cart
RT	15730		box of 5 kits	76.50	Add to Cart

Formaldehyde Aqueous Solution, 16%

(Paraformaldehyde Aqueous Solution)

EM Grade

Paraformaldehyde - methanol free solution. A more efficient and rapid penetrant fixative used in combination with Glutaraldehyde and Acrolein fixatives. Easy to break, prescored, 10ml ampoules sealed under inert gas, or 100ml bottles.

16% Aqueous Solution

RT	15700		10ml	5.00	Add to Cart
RT	15710		10x10ml	22.50	Add to Cart
RT	15710-S		100ml	21.00	Add to Cart
RT	15711		10 box/lot	210.00	Add to Cart

4% Aqueous Solution

RT	157-4		10x10ml	18.00	Add to Cart
RT	157-4-100		100ml	17.00	Add to Cart

8% Aqueous Solution

RT	157-8		10x10ml	19.50	Add to Cart
RT	157-8-100		100ml	18.00	Add to Cart

10% Aqueous Solution

RT	15712		10x10ml	20.50	Add to Cart
RT	15712-S		100ml	19.00	Add to Cart

20% Aqueous Solution

RT	15713		10x10ml	26.00	Add to Cart
RT	15713-S		100ml	24.00	Add to Cart

32% Aqueous Solution

RT	15714		10x10ml	31.00	Add to Cart
RT	15714-S		100ml	29.00	Add to Cart

Formaldehyde/Zinc Fixative

Prepared: Ready-to-use.

Features:

• Preserves fine nuclear details.
• Good for immunostaining.
• Contains no mercury.
• Can be used with automated tissue processors.
• Works well with standard and special stains because zinc is a stain enhancing mordant.

RT	15675-01	Formaldehyde/Zinc Fixative	1 L	11.00
RT	15675-04	Formaldehyde/Zinc Fixative	4 L	38.00

Formic Acid 96%, Reagent, A.C.S.

HCOOH   F.W. 46.03   CAS #64-18-6
Specific Gravity: 1.22

RT	15750	Formic Acid 96%	225ml	9.00	Add to Cart
RT	15760	Formic Acid 96%	1 liter	28.00	Add to Cart

Glutaraldehyde

OCHCH₂CH₂CH₂CHO F.W. 100.12 CAS #111-30-8
Specific Gravity @20/20°C: 1.131

EM Grade Distillation Purified

• The Universal Fixative for Electron Microscopy.
• Purified to EM Grade from commercial grade by "all-glass vacuum-distillation."
• THE HIGHEST PURITY, free from polymers and other contaminants.
• Each lot is tested and assayed in our lab before we ship and guarantee its purity.
• Sealed under dry nitrogen.
• Refrigerated prior to shipment.

After glutaraldehyde has been purified to EM grade, it has a high risk of polymerizing if it is not handled properly. Electron Microscopy Sciences takes special precautions to assure a polymer-free, pure glutaraldehyde.

Every lot of our EM grade aqueous glutaraldehyde is assayed prior to shipping assuring you consistent purity and the highest possible quality. If stored properly, our Glutaraldehyde has a very long shelf life.

We package our aqueous glutaraldehyde in 10ml, single dose ampoules, sealed under dry nitrogen, and kept refrigerated until it is shipped. We offer our aqueous glutaraldehyde in a wide range of percen- tages to simplify mixing procedures and avoiding waste.

EM grade aqueous glutaraldehyde, stored in volumes greater than 100ml, with repeated defrosting and recapping, will polymerize in time, producing an absorption peak of 235nm rather than the 280nm of pure EM grade. The presence of polymerized glutaraldehyde greatly reduces its efficiency as a cross-linking agent, preventing proper fixation. For this reason, we provide 10ml ampoules and 100ml bottle quantities for larger applications.

8% Aqueous Solution

0-18ºC	16000		10ml ampoule	6.00	Add to Cart
0-18ºC	16019		Box 10x2ml	16.00	Add to Cart
0-18ºC	16020		Box 10x10ml ampoules	20.00	Add to Cart
0-18ºC	16021	same as 16020	10 bxs	178.00	Add to Cart
0-18ºC	16022	same as 16020	20 bxs	348.00	Add to Cart
0-18ºC	16010		100ml bottle	17.00	Add to Cart

10% Aqueous Solution

0-18ºC	16100	10ml ampoule	each	6.00
0-18ºC	16120	Box 10x10ml ampoules	box	22.00	Add to Cart
0-18ºC	16121	same as 16120	10 bxs	200.00	Add to Cart
0-18ºC	16122	same as 16120	20 bxs	390.00	Add to Cart
0-18ºC	16110	100ml bottle	each	18.00	Add to Cart

25% Aqueous Solution

0-18ºC	16200		10ml ampoule	7.00	Add to Cart
0-18ºC	16220		Box 10x10ml ampoules	24.00	Add to Cart
0-18ºC	16221	same as 16220	10 bxs	220.00	Add to Cart
0-18ºC	16222	same as 16220	20 bxs	418.00	Add to Cart
0-18ºC	16210		100ml bottle	20.00	Add to Cart

50% Aqueous Solution

	16300
	16320

0-18ºC	16300		10ml ampoule	7.50	Add to Cart
0-18ºC	16320		Box 10x10ml ampoules	37.00	Add to Cart
0-18ºC	16321	same as 16320	10 bxs	335.00	Add to Cart
0-18ºC	16322	same as 16320	20 bxs	620.00	Add to Cart
0-18ºC	16310		100ml bottle	36.00	Add to Cart

70% Aqueous Solution

0-18ºC	16350		10ml ampoule	8.50	Add to Cart
0-18ºC	16360		box 10x10ml ampoules	50.00	Add to Cart
0-18ºC	16365		box 10x2ml ampoules	29.00	Add to Cart

Biological Grade

25% Solution	16400
50% Solution	16500

0-18ºC	16400	25% Solution	450ml	18.00	Add to Cart
0-18ºC	16401	25% Solution	4x450ml	68.00	Add to Cart
0-18ºC	16410	25% Solution	1 gal.	55.00	Add to Cart
0-18ºC	16411	25% Solution	4x1 gal.	210.00	Add to Cart
0-18ºC	16500	50% Solution	450ml	19.00	Add to Cart
0-18ºC	16501	50% Solution	4x450ml	73.00	Add to Cart
0-18ºC	16520	50% Solution	1 liter	23.00	Add to Cart
0-18ºC	16521	50% Solution	4x1 liter	75.00	Add to Cart

Serum Vial Aqueous Glutaraldehyde

Over the years, many of our valued customers have requested purchasing our aqueous Glutaraldehyde in serum vials. This packaging allows the user to puncture the special non-reactive seal with a hypodermic syringe and draw out the exact quantity of aqueous Glutaraldehyde needed without opening the container. This packaging assures freshness and purity of the aqueous Glutaraldehyde at all times

0-18ºC	16216	25% EM Grade Aqueous Glutaraldehyde in Serum Vial	10 x10ml	36.00	Add to Cart
0-18ºC	16214	25% EM Grade Aqueous Glutaraldehyde in Serum Vial	100ml	27.00	Add to Cart
0-18ºC	16316	50% EM Grade Aqueous Glutaraldehyde in Serum Vial	10 x10ml	47.00	Add to Cart
0-18ºC	16314	50% EM Grade Aqueous Glutaraldehyde in Serum Vial	100ml	37.00	Add to Cart

* All other concentrations are available in serum vials upon request.

For any special concentration, or packaging requirements other than those already listed, please call us today. We will manufacture in accordance to your specifications.

Anhydrous EM Grade Glutaraldehyde: Specially Prepared-10% Solution

Rapid-Freezing on a polished metal surface, at the temp. of liquid helium or liquid nitrogen, followed by freeze-substitution in osmium-acetone, has been shown to be a very useful technique for capturing rapid cellular events and for preserving cell ultrastructure.
* John M. Robinson and Morris J. Karnovsky, 1991. "Rapid-freezing Cytochemistry: Preservation of Tubular Lysosomes and Enzyme Activity". J. of Histochem., Cytochem. Vol. 39, No. 6, pp 787-792

Ordering Information: (please call for additional information)

	16530	10% in Acetone	10x10ml	75.00	Add to Cart
	16531	10% in Ethanol	10x10ml	75.00	Add to Cart
	16532	10% in Methanol	10x10ml	75.00	Add to Cart
	16533	10% in Solvent of your choice	10x10ml	75.00	Add to Cart

We would be pleased to fill your specific glutaraldehyde needs. Please call for prices on special concentrations or size requirements.

Glutaraldehyde Spill Control; G-gard-ER

Transforms glutaraldehyde to a nearly neutral solution and renders the solution acceptable for sewer disposal. Prepares glutaraldehyde for biodegradation. Reduces biocidal activity and odor. 65g G-gard pre-treats one gallon of 1% solution.

RT	24142-01	Glutaraldehyde Spill Control	64g	6.00	Add to Cart
RT	24142-10	Glutaraldehyde Spill Control	10x64g	25.00	Add to Cart

Ampoule Cracker™

The Ampoule Cracker™ is a disposable plastic fracture and safety collar, which is specially designed to aid in the breaking open of pre-scored glass ampoules. Simply slip the Ampoule Cracker™ over the top at the pre-scored portion, snap it, and discard both the ampoule top and the safety collar to prevent cross contamination

60605-04	Ampoule Cracker for Ampoule Size 1 – 4 ml	500/pk	35.00	Add to Cart
60605-10	Ampoule Cracker for Ampoule Size 5 – 10 ml	500/pk	35.00	Add to Cart
60605-20	Ampoule Cracker for Ampoule Size 10 – 20 ml	500/pk	67.00	Add to Cart

Ampoule Breaker; Soft Silicon

Reusable – Made from soft silicone. It offers a simple way to break pre-scored glass ampoules safely. Accommodates 5, 7, and 10 ml size ampoules. Reduces injury and spillage.

60600

Ampoule Breaker

each

15.00

Add to Cart

Gold Chloride, Hydrate(Chloroauric Acid; Hydrogen Tetrachloroaurate)

H(AuCl₄)·H₂O   F.W. 357.79   CAS #16961-25-4
Assay 99.9985%
Gold contents 49%+
A highly purified gold compound for the preparation of Colloidal Gold sols. Preweighed to facilitate your work. (Preparation instructions for Gold Sols included)

RT	16580		10x1/10g	52.00/bx	Add to Cart
RT	16582		10x1/2g	242.00/bx	Add to Cart
RT	16583		1g	50.00/g	Add to Cart
RT	16584		10x1g	480.00/bx	Add to Cart

Gold Chloride Aqueous Solutions

RT	16586	Gold Chloride 0.1% Aqueous	500 ml	40.00	Add to Cart
RT	16587	Gold Chloride 0.2% Aqueous	500 ml	66.00	Add to Cart
RT	16588	Gold Chloride 0.5% Aqueous	500 ml	128.00	Add to Cart
RT	16589	Gold Chloride 1.0% Aqueous	500 ml	195.00	Add to Cart
RT	16590	Gold Chloride 10.0% Aqueous	500 ml	1,325.00	Add to Cart

Gold, Immuno, see Section 2 ImmunoGold Reagents

Gum Mastic

0-4°C	16590-01	Gum Mastic, 2.5% in Alcohol	500 ml	54.00	Add to Cart
0-4°C	16591	Gum Mastic, 5% in Alcohol	500 ml	58.00	Add to Cart
0-4°C	16592	Gum Mastic, 10% in Alcohol	500 ml	60.00	Add to Cart
0-4°C	16595	Gum Mastic, 10% in Isopropanol	500 ml	60.00	Add to Cart

Hexamethylenetetramine, A.C.S. Reagent, Granular

(Urotropine; Methenamine)

C₆N₄   F.W. 140.19   CAS #100-97-0

Assay:

99.0-100.5%

Specifications:

Residue after Ignition		0.1%
Chloride		0.014%
Sulfate		To Pass Test
Heavy Metals.		0.001%

Used in silver stains.

Swift, J.A. (1968) Microsc. Soc. 88, 449.

RT	16710		50g	11.00	Add to Cart
RT	16710-25*		25g	6.00	Add to Cart
RT	16712	Methynamine, 3% Aqueous	500 ml	25.00	Add to Cart

Hexylene Glycol, Reagent, A.C.S.

(2-Methyl-2,4-pentanediol)

(CH₃)₂C(OH)CH₂CH(OH)CH₃   F.W. 118.18   CAS #107-41-5

Specific Gravity @25°C 0.923

A.C.S. Specifications:

Assay		99%
IR Spectrum		To Pass Test
Refractive Index @20°C		0.921-0.923

Mixed with water in all proportions. Used as a dehydrating agent for fat tissues.

RT	16740		450ml	23.00	Add to Cart
RT	16750		4x450ml	88.00	Add to Cart