Glycerine
to HPMA
Fluorescein Isothiocyanate, Isomer I, Certified (FITC)
C21H11NO5S F.W. 389.39 CAS #3326-32-7
Assay >90%
Water soluble.
| 0-5°C | 15670 | ½gm | 132.00 | Add to Cart |
Fluoromount-G™, Slide Mountant
Please see listing in Adhesives and Mountants
Formamide, Ultra High Purity
HCONH2 F.W. 45.04 CAS #75-12-7
Specific Gravity: 1.128-1.132
Glass Distilled. Exceeds A.C.S. Specifications
Specifications:
| Assay | 99.9% | |
| Iron. | 0.5ppm | |
| Copper | 0.1ppm | |
| Lead | 0.5ppm | |
| Zinc | 0.5ppm |
| RT | 15745 | Formamide, Ultra High Purity | 100 ml | 42.00 | Add to Cart |
| RT | 15746 | Formamide, Ultra High Purity | 500 ml | 124.00 | Add to Cart |
| RT | 15747 | Formamide, Ultra High Purity | 4x500 ml | 356.00 | Add to Cart |
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% | 225 ml | 10.00 | Add to Cart |
| RT | 15760 | Formic Acid 96% | 1 liter | 32.00 | Add to Cart |
Formvar 15/ 95 Resin, Powder
CAS #63450-15-7
Polyvinyl formvar desiccated. Used to prepare Support films.
Soluble in ethylene dichloride, chloroform or dioxane.
| RT | 15800 | Formvar 15/ 95 Resin | 100g | 10.00 | Add to Cart |
Formvar Solution in Ethylene Dichloride
Microfiltered-ready to use.
| RT | 15810 | 0.25% | 100 ml | 10.00 | Add to Cart |
| RT | 15820 | 0.50% | 100 ml | 11.00 | Add to Cart |
| RT | 15830 | 1.00% | 100 ml | 12.00 | Add to Cart |
| RT | 15830-25 | 1.00% | 4x25 ml | 15.00 | Add to Cart |
*Any of the above percentages are packed in 25 ml bottles to avoid its classification as a hazardous chemical for shipping purposes. Please specify % upon ordering.
Gach Kit
Please see listing in Embedding Media Kits.
| RT | 15920 | Giemsa Stain Solution | kit | 35.00 | Add to Cart |
Technical Tip:
Preparation of Gelatin Adhesive
Gelatin, Powder, U.S.P.
CAS #9000-70-8
Solubility: 12% in H2O at 20°C
pH (1% in H2O): 3.5-5.0
Residue after ignition: <2%
Type A-from Porcine skin (acid cured tissue)
Type B-from Bovine skin (base cured tissue)
The strength of the gel is based on the bloom number. The higher
the bloom number the stronger the gel.
- Used as a combination Acrylamide-Gelatin-Jung resin for cryosectioning of large and soft tissues (eggs, fishes, insects) Hartmann, R. (1984). A new embedding medium for cryosectioning eggs of high yolk and lipid content. Eur. J. Cell Biol., 34:206
- Used to prepare gelatin-chrome alum adhesive to coat glass slides for mounting semi-thin sections for staining.
| RT | 16560 | Gelatin, Type A; × 60 Bloom | 100g | 48.00 | Add to Cart |
| RT | 16562 | Gelatin, Type A; × 175 Bloom | 100g | 48.00 | Add to Cart |
| RT | 16564 | Gelatin, Type A; × 300 Bloom | 100g | 48.00 | Add to Cart |
| RT | 16566 | Gelatin, Type B; × 75 Bloom | 100g | 48.00 | Add to Cart |
| RT | 16568 | Gelatin, Type B; × 225 Bloom | 100g | 48.00 | Add to Cart |
Giemsa Solution
| Glycerin (CAS#: 56-81-5): | 61% |
| Methyl Alcohol (CAS#: 67-56-1): | 38.3% |
| Azur II (CAS#: 37247-10-2): | 0.16% |
| Azur II Eosin (CAS#: 53092-85-6): | 0.06% |
Specific Gravity: 0.89
Differentiates types of leucocytes, bacteria and inclusion bodies.
Giemsa, Centralbl. F. Publ., Abt. 1,37, 308 (1904) Stain for thick blood films;
shows malarial parasites. Barber and Komp, Publ. Health Rep., 44, 2330 (1929)
Bone marrow and stain for showing cell morphology; together with May-Grunwald
Solution for pap staining. Pappenheim, Folia Haemat., 13, 338 (1912)
| RT | 15940 | Giemsa Stain Solution | 100 ml | 19.00 | Add to Cart |
Giemsa Stain, Certified, Powder
CAS #51811-82-6
See the listing in Certified
Dyes/Stains
| RT | 15942 | 10g | 40.00 | Add to Cart |
For our Giesma Stain Solution
See the listing in Histology: Certified Dyes/Stains
Gill’s Hematoxylin Staining Solution
Gill's Hematoxylin is a specially formulated solution for use as a biological stain for the nuclei and nuclear chromatin of normal and abnormal cells whether in whole or sliced cells. Our Gill's Hematoxylin is designed to use at its full strength. It is microfiltered prior to shipment; therefore, filtration before use is not required. For repeated use further filtration is recommended. At the discretion of the user, the Gill's Hematoxylin No. 2 and No. 3 may be diluted with ethylene glycol (25% is recommended) to produce a weaker stain solution.
| RT | 26030-10 | Gill's Hematoxylin No. 1 | 1 L | 65.00 | Add to Cart |
| RT | 26030-14 | Gill's Hematoxylin No. 1 | 4 L | 235.00 | Add to Cart |
| RT | 26030-20 | Gill's Hematoxylin No. 2 | 1 L | 66.00 | Add to Cart |
| RT | 26030-24 | Gill's Hematoxylin No. 2 | 4 L | 244.00 | Add to Cart |
| RT | 26030-30 | Gill's Hematoxylin No. 3 | 1 L | 70.00 | Add to Cart |
| RT | 26030-34 | Gill's Hematoxylin No. 3 | 4 L | 268.00 | Add to Cart |
Glycerine, Reagent, A.C.S.
(Glycerol)
C3H5(OH)3 F.W. 92.10 CAS #56-81-5
| Specific Gravity: 1.23 | ||
| Assay | <99.5% | |
| Residue after Ignition | 0.005% | |
| Chlorinated Compounds(as Cl) | 0.003% | |
| Sulfate | To Pass Test | |
| Heavy Metals (as Pb) | 0.0002% |
| RT | 16550 | 450 ml | 35.00 | Add to Cart |
(GMA), Glycol-Methacrylate, Low Acid
(2-Hydroxyethyl methacrylate monomer, inhibited;HEMA)
C6H10O3 F.W. 130.14 CAS#868-77-9
Specific Gravity: 1.07
b.p. 67°C
Inhibited with approximately 330ppm MEHQ
A water soluble monomer.
| RT | 16800 | 450 ml | 34.00 | Add to Cart |
Article of Interest
Preparation of Glycol Methacrylate
GMA Embedding Kit
Please see listing in Embedding Media Kits.
| 14200 | kit | 46.00 | Add to Cart |
GMA-PEG Embedding Kit Polyethylene Glycol- Glycol methacrylate mixture.
Please see listing in Embedding Media Kits.
| 14250 | kit | 47.00 | 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 | 74.00 | Add to Cart | |
| RT | 16582 | 10x1/2g | 350.00 | Add to Cart | |
| RT | 16583 | 1g | 72.00 | Add to Cart | |
| RT | 16584 | 10x1g | 620.00 | Add to Cart |
Gold Chloride Solutions
Please see listing in Reagents for Histology .
Tannic Acid, used to prepare gold sols
Please see listing in Chemicals.
Gram's Iodine
For use as a bacterial, fungal and inclusion body stain.
| RT | 26054-05 | Gram's Iodine Solution | 500 ml | 22.00 | Add to Cart |
| RT | 26054-06 | Gram's Iodine Solution | 1 L | 38.00 | Add to Cart |
Graphite Adhesives
Please see listing in Colloidal Compounds.
Gum Mastic
Please see listing in Reagents for Histology .
HANKS's Balanced Salt Solution (HBSS)
All of our Hanks’ Balanced Salt Solutions contain: Potassium Chloride, Potassium Phosphate Monobasic, Sodium Chloride, Sodium Phosphate Dibasic, and D-Glucose. Some formulations may contain additional components. Use the table below as a quick reference for identifying the one that best suits your application. All solutions are prepared in 1X strength.
| Ingredients | F.W. | Formula I | Formula II | Formula III |
| KCl | 74.56 | X | X | X |
| NaCl | 58.44 | X | X | X |
| Na2HPO4. 7H2O | 268.07 | X | X | X |
| D-Glusose | 180.16 | 2 g/L | 1 g/L | ---- |
| MgSO4. 7H2O | 246.48 | X | X | X |
| CaCl2, 2H2O | 147.02 | X | X | X |
| KH2PO4 | 136.09 | X | X | X |
| NaHCO3 | 84.01 | X | X | X |
| Phenol Red | 0.02 g/L | 0.02 g/L | 0.015 g/L |
| RT | 11768-05 | HBSS, Formula I, 0.179M | 500 ml | 18.00 | Add to Cart |
| RT | 11768-10 | HBSS, Formula I, 0.179M | 1 L | 23.00 | Add to Cart |
| RT | 11769-05 | HBSS, Formula II, 0.155M | 500 ml | 18.00 | Add to Cart |
| RT | 11769-10 | HBSS, Formula II, 0.155M | 1 L | 23.00 | Add to Cart |
| RT | 11770-05 | HBSS, Formula III, 0.147M | 500 ml | 18.00 | Add to Cart |
| RT | 11770-10 | HBSS, Formula III, 0.147M | 1 L | 23.00 | Add to Cart |
Harris’ Hematoxylin
Stain selectivity for nuclei, fat and lipids. Ready-to-use.
| RT | 26041-05 | Harris' Hematoxylin | 500 ml | 32.00 | Add to Cart |
| RT | 26041-06 | Harris' Hematoxylin | 1 L | 56.00 | Add to Cart |
| RT | 26041-20 | Harris' Hematoxylin without Mercury | 500 ml | 32.00 | Add to Cart |
Hematoxylin, Certified, C.I.#75290
(Natural Black I, Hydroxybrasilin)
C16H14O6 F.W. 302.29 CAS
#517-28-2
Solubility: 10.0% Water; 10.0% Alcohol; 9.5% Cellosolve; 10%
Glycol; 0.0% Xylene. A certified biological stain used in histology
and cytology and plastic embedded tissues.
Chen, Chang, S., J Arch. of Path., 93,334 (1972).
| RT | 16620 | 10g | 26.00 | Add to Cart |
Technical Tip
Hepes 0.2M Buffer Solution
Please see listing in Prepared Buffers.
| RT | 11494 | 500 ml | 18.00 | Add to Cart |
Hepes, Crystal, Biological Buffer
(N-2-Hydroxyethylpiperazine-N'-2-Ethanesulfonic acid)
C8H18O4N2S F.W. 238.30 CAS
#7365-45-9
| Assay | >99% | |
| pKa @20°C | 7.55 | |
| pH Range | 7.0-8.0 | |
| A(260) (1.0M in H2O) | <0.05 | |
| Ash | <0.1% | |
| Good's buffer. |
| RT | 16780 | 25g | 14.50 | Add to Cart | |
| RT | 16782 | 100g | 52.00 | Add to Cart |
(HMDS), Hexamethyldisilazane, Reagent
(CH3)3SiNHSi(CH3)3 F.W. 161.40 CAS
#999-97-3
b.p. 126.7°C
Assay >97.0%
Specific Gravity @25°C 0.774
Refractive Index @20°C: 1.407
* For fast preparation of soft insect tissues for SEM. A good substitution
for critical point drying. Int. J. Insect Morh. Embryol., 12(4), 201 (1983)
Stain Tech., 58(6), 347 (1983)
* Bray, D.F., Et-al. (1993). Micros. Res. and Technique. 26:489-495. A comparison
of HMDS, Peldri II, and critical point drying methods for SEM of biological
specimens.
| RT | 16700 | 100 ml | 17.00 | 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 | 12.00 | Add to Cart | |
| RT | 16710-25* | 25g | 8.00 | Add to Cart |
*We are now offering Hexamethylenetetramine in 25 ml bottles to avoid its classification as a hazardous chemical for shipping purposes.
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 | 450 ml | 23.00 | Add to Cart | |
| RT | 16750 | 4x450 ml | 88.00 | Add to Cart |
HPMA Embedding Kit
Please see listing in Embedding Media Kits.
| RT | 14220 | kit | 39.00 | Add to Cart |