About Our Chemicals...
- Storage conditions of EACH chemical is noted in the box left of the catalog number.
- CODE: = Room Temperature
- For increased shelf life of room temperature stored chemicals, see equipment section for our complete line of Desiccator Cabinets. All chemicals must be kept away from direct sunlight.
- All specific gravities, unless otherwise specified are measured at water = 1
- All of the EMS stains are certified.
- For a chart of uses and applications of our Dyes & Stains, see pages 326-327
- EM Grade = ACS Reagent
Acetamido to Butyl
4-Acetamido-4'-Isothiocyanostilbene-2,2'-Disulfonic
Acid (SITS), Sodium Salt
C17H12N2O7S3Na2 F.W. 498.50 CAS #5-1023-76-8 SITS has been used as a vital stain, as a label for immunostaining, and as a neuronal tracer. SITS is also a non-penetrating fluorescent marker for erythrocyte membranes which acts as a potent inhibitor of anion transport. For more information related to the preparation and characterization of SITS, please refer to: Jakobsen, P. and Horobin, Richard W.(1989). Stain Technology, Vol.64, No.6 pg.301-313.
| RT | 10030 | SITS, Disodium Salt | 250mg | 80.00 | Add to Cart |
Acetate
Buffer
Please see listing in Prepared Buffers.
| RT | 11480 | 225 ml | 13.00 | Add to Cart | |
| RT | 11482 | 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 | 10010 | 4x1 qt. | 48.00 | Add to Cart | |
| RT | 10012 | 250 ml | 7.00 | Add to Cart | |
| RT | 10014 | 4x250 ml | 20.00 | Add to Cart |
Acetone,
Glass Distilled CAS #67-64-74-1
U.V. Absorption - 1cm cell vs. H2O
| wavelength (nm) | 400 | 350 | 340 | 330 |
| A | 0.01 | 0.02 | 0.10 | 1.0 |
| RT | 10015 | 100 ml | 13.00 | Add to Cart | |
| RT | 10016 | 4x100 ml | 44.00 | Add to Cart |
Acetone: Alcohol
Please see listing in Reagents for Histology: Fixing, Dehydrating, Clearing and Staining.
Acetonitrile,
Reagent, A.C.S.
CH3CN FW 41.05 CAS #75-05-8 A non-carcinogenic substitute for Propylene Oxide, used in tissueprocessing for TEM. Good for infiltration with EMbed-812 or other Epon-812 substitutes. Tarnowski, sB.I. et al, EMSA proceedings, Detroit, MI page 38 (1984)
| RT | 10020 | 450 ml | 42.00 | Add to Cart | |
| RT | 10021 | 4x450 ml | 158.00 | Add to Cart |
Technical Tip
Acid Alcohols
An acidified alcohol solution for the differentiation of regressive stains.
| RT | 26071-01 | Acid Alcohol, 0.5% HCl in 70% Alcohol | 1 L | 35.00 | Add to Cart |
| RT | 26071-04 | Acid Alcohol, 0.5% HCl in 70% Alcohol | 4x1 L | 122.00 | Add to Cart |
| RT | 26072-01 | Acid Alcohol, 1% HCl in 70% Alcohol | 1 L | 31.00 | Add to Cart |
| RT | 26072-04 | Acid Alcohol, 1% HCl in 70% Alcohol | 4x1 L | 110.00 | Add to Cart |
| RT | 26073-01 | Acid Alcohol, 1% HCl in 95% Alcohol | 1 L | 40.00 | Add to Cart |
| RT | 26073-04 | Acid Alcohol, 1% HCl in 95% Alcohol | 4x1 L | 140.00 | Add to Cart |
Acid
Fuchsin, Certified, C.I. #42685
(Rubin S, Fuchsin S, Fuchsin Acid, Acid Magenta, Acid Violet 19) C20H17N3Na2O9S3 F.W. 585.54 CAS #3244-88-0 Solubility: 0.053% Water; 1.21% Alcohol
| RT | 10035 | 25 g | 28.00 | Add to Cart |
Acridine
Orange, C.I. #46005
(Basic Orange 14) C17H2ON3 Cl F.W. 301.82 CAS #65-61-2
Ultrastructural probes on DNA templates within human bone marrow and lymph node cells. Frenstar, J., Adv. Cell Mol. Biol., 3, 1(1974). Used to detect changes in DNA template activity within cells. Frenster, J. Cell Nucl., 1, 565 (1974) Fluorescent dye for cytochemistry. J. Histochem. Cytochem., 31, 737 ((1983) J. Lab. Med., 15 (3),180, (1984)
| RT | 10050 | 25g | 62.00 | Add to Cart |
Adhesives and Mountants
Please see the Adhesive and Mountants section.
Agar,
Powder, Bacteriological Grade
(C12H18O9)x F.W. 3000-9000 CAS #9002-18-0
| Geling Temperature (1.5% in H2O) | ~35°C | |
| Gel Strength (1.5% gel) | 300g/cm2 |
Specifications:
| Acid insoluble ash | 0.5% | |
| Arsenic | 3ppm max | |
| Gelatin | To Past Test | |
| Heavy Metals | <0.004% | |
| Lead | <0.001% | |
| Total ash | <6.5% | |
| Water | <20% |
| RT | 10200 | 100g | 24.00 | Add to Cart | |
| RT | 10202 | 500g | 110.00 | Add to Cart |
Agarose I™
(C6H10O5·C6H8O4)n CAS # 9012-36-6
- All purpose, high-purity Agarose
- Exceptional Band Resolution & Clarity
- Nuclease & Protease free
- Convenient Tablet Form is available - no weighing required
Agarose I™ is standard melting/gelling agarose, suitable for routine nucleic acid analytical/preservative applications. Agarose I™ has a low EEO for shorter electrophoresis runs without compromising resolution. Excellent for blotting technique and general manipulations.
Biotechnology Grade:
| Gel Strength (1.5%) | ≥ 1200 g/cm2 | |
| Gelling Range (1.5%) | 36-39°C | |
| Melting Point | 87-89°C | |
| EEO | ≤ 0.10 mr | |
| Sulfate | ≤ 0.15 % | |
| DNase | None Detected | |
| RNase | None Detected | |
| Protease | None Detected | |
| pH (3%, Water) @ 25°C | 5.7 – 7.7 | |
| Conductivity (3%, Water) @ 25°C | ≤ 17.0 µohms | |
| Moisture (KF) | ≤ 10 % | |
| Endonuclease/Ligase Inhibitory Factors | None Detected |
| RT | 10205 | Agarose I™ Powder | 100g | 170.00 | Add to Cart |
| RT | 10206 | Agarose I™ 500 mg/Tablet | 100 Tabs | 105.00 | Add to Cart |
™ trademark of Amresco®
Technical Data Sheet
Agarose for the Separation of Biological Molecules by Gel Electrophoresis
Agarose SFR™
(C6H10O5·C6H8O4)n CAS #9012-36-6
- Super fine resolution: Resolve 238 bp & 242 bp band
- Low melting point
- Consistent & reproducible results
- Nuclease & protease free
- Ideal for AFLP’s, STR’s & Tetranucleotide repeats.
Agarose SFR™ is a high resolution sieving agarose with unsurpassed clarity. DNA bands differing in size by 2% can be resolved in the range of 200 – 1,000 bp. This agarose is suitable for the analysis of AFLP’s (Amplified Fragment Length Polymorphisms), STR’s (Short Tandem Repeats) and tetranucleotide repeats. The low melting point of agarose SFR™ makes it an excellent medium for analytical and preparative electrophoresis.
Biotechnology Grade
| Gel Strength (1.5%) | ≥ 500 g/cm2 | |
| Gelling Range (1.5%) | ≤ 30°C | |
| Melting Point | ≤ 70°C | |
| EEO | ≤ 0.12 mr | |
| Sulfate | ≤ 0.11 % | |
| Moisture (KF) | ≤ 7.0 % | |
| Ash | ≤ 0.35 % | |
| DNase | None Detected | |
| RNase | None Detected | |
| Protease | None Detected | |
| pH (3%, Water) @ 25°C | 5.7 – 7.7 | |
| Conductivity (3%, Water) @ 25°C | ≤ 10.0 µohms |
| RT | 10207 | Agarose Super Fine Resolution | 100g | 410.00 | Add to Cart |
™ trademark of Amresco®
Alcian
Blue 8GX, C.I. #74240 (Ingrain Blue I)
C56H68N16S4Cu F.W. 1298.88 CAS #12040-44-7 Dye Content: Approx. 50% Solubility: Water-soluble
Used as a fixative: 0.5-2% Alcian Blue in Glutaraldehyde fixative enhances the preservation and constrast of the cell coat and intercellular substances. Used as a stain: For staining cell surface materials and cartilage components. Schofield, et al., Histochem J. 7, 139,1975 Used as a wetting agent: Sommer, J. R (1977). To cationize glass. J.Cell Bio. 75, 245a. Alcian Blue and Ruthenium Red were used to study cartilage ultrastructure. Thyberg, J., Lohmander, S., and Friberg, U., J. Ultrastruct. Res., 45, 407 (1973).
| RT | 10350 | 25g | 190.00 | Add to Cart |
Technical Tip
Congo Red Solution
| RT | 26090-05 | Alcoholic Congo Red, 0.2% Solution | 500 ml | 32.00 | Add to Cart |
| RT | 26090-06 | Alcoholic Congo Red, 0.2% Solution | 1 L | 53.00 | Add to Cart |
Alizarin
Red S, Certified, C.I. #58005
(Alizarin Camine, Mordant Red 3) C14H7O7SNa.H2O F.W. 360.28 CAS #130-22-3 Solubility: 7.69% Water; 0.1% Alcohol.
Certified for Staining Bone. Stain for nervous tissue in small invertebrates, and for sections of nervous tissue. Lee, "The Microtomist's Vade-Mecum", 10th Ed., The Blakiston Co., Phila., 1937; Dawson, Stain Tech., 1, 123 (1926); Lundvall, Anat. Anz., 27, 521 (1905); 137. Use to differentiate bone from cartilage in mammalian embryos; used with Toluidine Blue. William, Stain Tech., 16, 23 (1941)
| RT | 10360 | 25g | 37.00 | Add to Cart |
Aluminum Oxide 90 Basic
Al2O3 F.W. 101.96 CAS 1344-28-1
Aluminum Oxide 90 Basic (63-200 Micron) for use with Technovit® 9100.
| RT | 10400 | Aluminum Oxide 90 Basic | 500 g | 150.00 | Add to Cart |
Amphibian Ringer Solution
Ingredients: NaCl; KCl; CaCl2·6H2O and Distilled water.
| RT | 11762-05 | Amphibian Ringer Solution | 500 ml | 20.00 | Add to Cart |
| RT | 11762-10 | Amphibian Ringer Solution | 1 L | 30.00 | 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 | 450 ml | 16.00 | Add to Cart | |
| RT | 10601 | 4x450 ml | 58.00 | Add to Cart |
Ammonium
Molybdate, Reagent, 99%
(Molybdic acid, ammonium salt) (NH4)6MO7O24 ·4H2O F.W. 1235.86 CAS #12027-67-7
Used in the negative staining of viruses for TEM. Modifications caused by uncoupling agents. Muscatello, U., et al, J. Ultrastruct., Res., 52, 2 (1975)
| RT | 10500 | 100g | 37.00 | Add to Cart |
Amyl
Acetate, Reagent, A.C.S.
CH3COOC5H11 FW 130.18 CAS #628-63-7 Boiling Range: 140.0°C-150.0°C Specific Gravity @ 25° C: 0.870-0.875 A.C.S. Specifications:
| Acidity (as CH3COOH) | 0.01% | |
| Non-volatile Matters | 0.01% | |
| Water (W/W) | 0.2 % |
| RT | 10800 | (Plastic coated btl.) (946ml) | 1qt | 44.00 | Add to Cart |
| RT | 10810 | 4x1qt | 160.00 | Add to Cart |
Amyl
Acetate, Purified, Glass Distilled
CAS #628-63-7
| RT | 10815 | (Plastic coated btl.) | 100 ml | 12.00 | Add to Cart |
| RT | 10816 | 4x100 ml | 42.00 | Add to Cart |
Aniline
Blue, Water Soluble, C.I. #42755
(Acid Blue 22; China Blue; Cotton Blue; Marine Blue V; Soluble Blue 3M, 2R; Water Blue) C32H25N3O9S3Na2 F.W. 737.74 CAS #28631-66-5
Solubility: 50% Water; 0.0% Alcohol; 4.5% Cellosolve; 7.8% Glycol; 0.0% Xylene Used in connective tissue staining procedures to stain collagen. Used in differential staining. Snodgress el al., Lab Invest. 26:329, 1972.
| RT | 10840 | 25g | 27.00 | Add to Cart |
Araldite
Resin
W.P.E. number included on each bottle.
| RT | 10900 | Araldite 502; CAS #84-74-2, Specific Gravity: 1.13 | |
450 ml | 14.75 | Add to Cart |
| RT | 10910 | Araldite 506; CAS #25068-38-6, Specific Gravity: 1.13 | |
450 ml | 14.75 | Add to Cart |
| RT | 10920 | Araldite 6005; CAS #3101-60-8, Specific Gravity: 1.16 | |
450 ml | 14.75 | Add to Cart |
| RT | 10930 | Araldite 507; CAS #26447-14-3, Specific Gravity: 1.14 | |
450 ml | 14.75 | Add to Cart |
Araldite
Embedding Kits
Please see listing in Embedding Kits.
| RT | 13900 | Araldite 502 Kit | kit | 39.00 | Add to Cart |
| RT | 13920 | Araldite 6005 Kit | kit | 42.00 | Add to Cart |
| RT | 13940 | Araldite-EMbed (Mollenhauer’s Kit) | kit | 61.00 | Add to Cart |
Technical Tips
For Araldite RD-1 see BGE. For Araldite RD-2, see BDE
Auramine
O, Certified, C.I. # 41000
(Pyoctanunum aureum; Basic Yellow 2; Pyoktanin Yellow; Canary Yellow) C17H21N3HCl·H2O F.W. 321.86 CAS # 2465-27-2 Solubility: 1.0% Water; 4.0% Alcohol; 1.2% Cellosolve; 1.75% Glycol; 0.05% Xylene
| RT | 10850 | 25 g | 78.00 | Add to Cart |
Azocarmine
G, Certified, C.I. #50085
(Acid red 101; Basalan Carmine GE; Rosinduline) C28H17N3Na2O6S2 F.W. 601.57 CAS #25641-18-3 Solubility: 1.0% Water; 0.1% Alcohol; 1.75% Cellosolve; 4.5% Glycol; 0.01% Xylene
| RT | 11150 | 5 g | 37.00 | Add to Cart |
Azur
A, C.I. #52005(Methylene Azur A)
C14H14ClN3S F.W. 291.80 CAS #531-53-3 Solubility: Water-soluble; Alcohol-soluble Used in nuclear staining; A polychromatic blood stain.
| RT | 11240 | 10g | 80.00 | Add to Cart |
Azur
B, C.I. #52010(Azur I; Methylene Azur B)
C15H16N3SBr FW 350.29 CAS #531-55-5
Solubility: Water-soluble; Alcohol-slightly soluble. An important component of Giemsa's stain for blood protozoa. Used for staining semi-thin sections of plant tissue. Hoefert, L.L. (1968). Polychromatic stains for thin sections of Beta embedded in epoxy resin. Stain Tech. 43:145
| RT | 11200 | 10g | 52.00 | Add to Cart |
Azur
II, C.I. #52010/52015
(Azur B/Methylene Blue 1:1) CAS #37247-10-2
| 11210 | 10g | 38.00 | Add to Cart |
Azur
II Eosin, C.I. #52010/52015/45380
(Azur B/Methylene Blue/Eosin 1:1:1) CAS #53092-85-6
| RT | 11220 | 10g | 53.00 | Add to Cart |
Azur
Mixture Solution
Please see Giemsa Solution.
Basic
Fuchsin, Certified, C.I. #42510
(Rasaniline Chloride; Magenta; Basic Violet 14) C20H19N3.HCl F.W. 337.86 CAS #632-99-5
Berkowitz et al., (1968). Selective staining of nervous tissue for light microscopy following preparation for electron microscopy. J. Histochem. Cytochem. 16:808. Sato, T., and Shamoto, M (1973). A simple rapid polychrome stain for epoxy-embedded tissue. Stain Technol. 48:223.
| RT | 11260 | 25g | 80.00 | Add to Cart |
Basic Green 4, Certified, C.I. #42000
(Malachite Green Oxalate; Diamond Green B; BX or P Extra; Light Green N, Solid Green O; Victoria Green B or WB) 2(C23H25N2).2(C2H2O4).C2O4 F.W. 927.03 CAS #2437-29-8 Solubility: 10.0% Water; 8.5% Alcohol; 5.5% Cellosolve; 7.0% Glycol; 0.0% Xylene. Used as a bacteria stain and a counterstain for botanical material.
| RT | 18100 | 25g | 41.00 | Add to Cart |
Benzoin,
U.V. Catalyst
C6H5CH(OH)COC6H5 F.W. 212.25 CAS #579-44-2 m.p. 134-136°C
| RT | 11270 | 100g | 12.00 | Add to Cart |
Benzoin
Ethyl Ether
(ethoxy phenylacetophenone) C6H5COCH(CO2H5)C6H5 F.W. 240.31 CAS #574-09-4 m.p. 56-59°C
| RT | 11280 | 50g | 45.00 | Add to Cart |
Benzoin
Methyl Ether, UV Catalyst
[alpha-Ethoxy-alpha-phenylacetophenone) C6H5CH(OCH3)COC6H5 F.W. 226.28 CAS #3524-62-7 Assay.>98% m.p. 47 - 49°C
| RT | 11290 | 10g | 18.00 | Add to Cart |
(BDMA),
Benzyldimethylamine
N-Benzyl-N, N-Dimethylamine C6H5CH2N(CH3)2 FW. 135.21 CAS #103-83-3 b.p. 177-180 °C An amine accelerator for polymerization of epoxy resins. A direct alternative to DMP-30 with a longer shelf life and better penetration. Purity: 98%
| 11400 | 100 ml | 11.50 | Add to Cart | ||
| 11400-25* | 25 ml | 6.00 | Add to Cart |
Technical Tip
Use of Accelerators for Epoxy Resins
Biebrich
Scarlet, Water Soluble, Certified, C.I. #26905
(Bonceau BS; Acid Red 66; Croceine Scarlet; Double Scarlet BSF) C22H14N4Na2O7S2 F.W. 556.4 9 CAS #4196-99-0 Solubility: 5.0% Water; 0.25% Alcohol; 1.5% Cellosolve; 1.5% Glycol; 0.0% Xylene
| RT | 11265 | 25g | 20.00 | Add to Cart |
BioBond;
Tissue Section Adhesive
Please see listing in Adhesives and Mountants.
Biomeda
Mounting Media
Please see listing in Adhesives and Mountants.
BioMount
Please see listing in Adhesives and Mountants.
Bismarck
Brown Y, Certified, C.I. #21000
(Basic Brown 1; Basic Brown G, GX, GXP; Vesuvine; Leather Brown; Manchester Brown; Phenylene Brown) C18H18N8·2HCl F.W. 419.32 CAS #10114-58-6 Solubility: 1.5% Water; 3.0% Alcohol; 3.0% Cellosolve; 7.9% Glycol; 0.05% Xylene
| RT | 11310 | 25g | 20.00 | Add to Cart |
Bismuth
Carbonate, Basic, Purified
(Bismuth Subcarbonate) Approx. (BiO)2CO3 CAS # 5892-10-4 Used for staining synapses. Pfenninger, K., Sandri, C., Albert, K. and Eugster, C.H. (1969). Contribution of the problem of structural organization of the presynaptic area. Brain Res., 12:10
| RT | 11420 | 25g | 20.00 | Add to Cart |
Bismuth
Stain Kit
Bismuth specifically stains Golgi beads and interchromatin granules after fixation with glutaraldehyde, whereas it stains nucleoli, basic protein, and biogenic amines after formaldehyde fixation. Bismuth staining of sections is relatively nonspecific: it can stain glycogen, lysosomes, ribosomes, polysaccharides, ferritin, and DNA. M.A. Hayat, "Basic Techniques for TEM" p. 184 (1986).
1. Specific En Bloc Staining (Locke & Huie, 1977)
Kit
contains: 10x5 ml Solution A (Sodium tartrate, Sodium hydroxide
and Bismuth Subnitrate)
10x10 ml solution B (.2M Triethanolamine-HCl buffer)
| RT | 11430 | Kit | 35.00 | Add to Cart |
2. Enhancing Contrast in General (Riva, 1974)
Kit
contains: 5x10 ml Solution A(Sodium tartrate in NaOH)
5x200mg Ingredient B (Bismuth subnitrate)
| RT | 11434 | Kit | 22.00 | Add to Cart |
3. Staining of Mucosubstances & Polysaccharides (Ainsworth et al., 1972)
Kit
contains: 10x10 ml Solution A (Periodic acid, Ethanol, Sodium acetate)
10x10 ml Solution B (Sodium tartrate, NaOH, Bismuth subnitrate)
| RT | 11436 | Kit | 40.00 | Add to Cart |
Bismuth
Subnitrate, Crystalline
(Bismuth Nitrate, Basic; Bismuth Oxynitrate Hydrate) 4BiNO3(OH2).BiO(OH) F.W. 1461.99 CAS #1304-85-4 Bismuth staining for light and electron microscopy. M .Locke and P. Huie, Tissue & Cell, 9, 347 (1977); G.L. Brown & M. Locke, ibd. 10, 365 (1978)
| RT | 11450 | 25g | 22.00 | Add to Cart |
Borax
Tetra, Sodium Borate, Reagent, A.C.S.
(Sodium Tetraborate, Decahydrate) Na2B4O7 .10H2O FW. 381.37 CAS #1303-96-4 A.C.S. Specifications
| Assay | 99.5-105% | |
| Calcium | 0.005% | |
| Chloride | 0.001% | |
| Insoluble Matter | 0.005% | |
| Iron (Fe) | 5ppm | |
| pH of 0.01M Solution @ 25° C | 9.15-9.20 | |
| Other Heavy Metals (as Pb) | 0.001% | |
| Phosphate (PO4 ) | 0.001% | |
| Sulfate (S04) | 0.005% |
| RT | 21130 | 500g | 20.00 | Add to Cart |
Boric
Acid, Reagent, Powder, A.C.S.
H3BO3 FW 61.83 CAS #10043-35-3 Assay 99.95% minimum. A buffer component in Tris-EDTA-Borate buffer. Also used in Silver-Methenamine buffer. Swift, J.A. (1968). The Electron histochemistry of cystine-containing proteins in thin transverse sections of human hair. J.R. Microsc. Soc. 88,449.
| RT | 11460 | 500g | 44.00 | Add to Cart |
Bouin's
Fixative
Please see listing in the Fixatives section.
Brilliant
Cresyl Blue, Certified, C.I.#51010
(Brilliant Blue C; Cresyl Blue 2RN) C17H21N4OCl F.W. 332.84 CAS #10127-36-3 Solubility: 3.0% Water; 2.6% Alcohol; 2.25% Cellosolve; 8.0% Glycol; 9.5% Xylene
| RT | 11465 | 10g | 52.00 | Add to Cart |
Bromophenol
Blue, Reagent, A.C.S.
(3',3",5 '5"-Tetrabromophenol-sulfonthalein) C19H10O5SBr4 F.W. 669.97 CAS #115-39-9
| 11470 | 5g | 22.00 | Add to Cart | ||
| 11471 | 25g | 64.00 | Add to Cart |
Buffers;
Prepared
Please see our complete listing of Prepared Buffers
1,4-Butanediol
Diglycidyl Ether;
(Araldite RD-2) C10H18O4 F.W. 202.2 CAS #2425-79-8 Approx. 70% Specific Gravity: 1.10
| RT | 11800 | 100 ml | 42.00 | Add to Cart |
2-Butoxy
Ethanol
(Butyl Cellosolve®; Ethylene Glycol Monobutyl Ether) CH3(CH2)3OCH2CH2OH F.W. 118.18 CAS #111-76-2 Specific Gravity: 0.90 b.p. 169°C
| RT | 11820 | 450 ml | 18.00 | Add to Cart |
Butvar
B-98 Powder
CAS #63148-65-2 (Terpolymer of polyvinyl butyl, polyvinyl alcohol & polyvinyl acetate) Polyvinyl butyl resin for thin film support. Stronger than Formvar and more sticky, resulting in a firm attachment for slotted or meshed grids. The standard solution is 0.25% Butvar B-98 in Chloroform. Handley, D.A., et. al., Ultramicroscopy, 4,479 (1979).
| RT | 11850 | 100g | 9.00 | Add to Cart |
Butvar
B-98 Solution
Stock solution : 1.0% in Chloroform.
| RT | 11860 | 100 ml | 12.00 | Add to Cart |
Technical Tip
Tips for Butvar B-98 Support Films
n-Butyl
Acetate, Reagent, A.C.S.
CH3COO(CH2)3CH3 F.W. 116.16 CAS #123-86-4 b.p . 127°C Specific Gravity: 0.88
| RT | 11900 | 450 ml | 20.00 | Add to Cart |
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 | 450 ml | 25.00 | Add to Cart | |
| RT | 11921 | 4x450 ml | 90.00 | Add to Cart |
Technical Tip
(BGE),
n-Butyl Glycidyl Ether, (Araldite RD-1)
(Butoxymethyl oxirane) C7H14O2 F.W. 130.19 CAS #2426-08-6 b.p. 166-168°C Specific Gravity: 0.912
| RT | 12000 | 100 ml | 7.00 | Add to Cart |
n-Butyl
Methacrylate, Monomer
CH2C(CH3)CO2CH2CH2CH2CH3 F.W. 142.20 CAS #97-88-1 b.p. 162-164°C Stabilized with 10ppm MEHQ. (Hydroquinone, Mononethylether)
| RT | 12100 | 225 ml | 15.00 | Add to Cart |