The Crystal Clear™ Series of polyurethane resins were designed for applications that require absolute clarity. These are low viscosity resins that cure at room temperature with negligible shrinkage to a hard plastic. Cured products are UV resistant and are not brittle. Applications include…

Blue Silicone Rubber comes as a kit consisting of 1 gal (9 lb) silicone base and 1 pt (1lb) blue catalyst. Blue Silicone Rubber is extremely high tear, high tensile strength, two components, and tin catalyzed RTV silicone rubber. It is designed for casting polyurethane foam, polyester and…

Formula: OCHCH₂CH₂CH₂CHO Formula Weight: 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…

An additive which stabilizes cholesterol 0.2% digitonin in buffer added to Glutaraldehyde fixative may help to stabilize and retain the fine structural localization of free cholesterol and cholesterol esters. Formula: C₅₆H₉₂0₂₉   Formula Weight: …

Formula: KMnO₄   Formula Weight: 158.03   CAS #: 7722-64-7 An EM fixative and a metal stain. J. Ultrastruct. Res., 21,424 (1968)

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…

A fixative that is used in light microscopy for the preparation of delicate structure.

Ready To mix. Kit consists of: 2x10 ml ampoules 16% Formaldehyde1x10 ml ampoules 50% Glutaraldehyde1x50 ml 0.2M Sodium Phosphate Buffer. Mixture 1: (Original Karnovsky's Mixture) 16% Paraformaldehyde Solution: 20ml 50% Glutaraldehyde EM Grade: 8ml 0.2M Sodium…

99% minimum purity - NH 2 NHCSNHNH 2 Pure white crystalline form M.P. is 172°C Indefinite shelf-life due to purification procedure Does not need to be kept refrigerated Staining method: (OTO) This staining method (osmium fixed tissue exposed to TCH followed by a second…

A solvent agent for epoxy resins. Used widely for infiltration and gradual replacement of the dehydration agent. Grade: EM Grade CAS #: 75-56-9 UN #: UN1760

UV Absorption - 1 cm cell vs H₂O wavelength (nm) 290 270 260 255 245 A 0.01 0.02 0.05 0.15 1.0 Assay         99.7% min. Evaporation Residue        …

Formula: Pb(CH₃COO)₂·3H₂0   Formula Weight: 379.33   CAS #: 6080-56-4

(Urotropine; Methenamine) Formula: C₆N₄   Formula Weight: 140.19   CAS #: 100-97-0 UN #: UN1328 Assay: 99.0-100.5%

Formula: C₁₂H₁₆N₄O₁₈   Formula Weight: 504.28   CAS # 9004-70-0 Highly purified from cellulose nitrate; specially prepared for embedding tissue for sectioning and for preparing semi-permeable membranes.

(Ethanol) – 200 Proof Formula: CH₃CH₂OH Formula Weight: 46.07 CAS # 64-17-5 UN#: UN1170

(Acetone Dimethyl Acetal) Used as a dehydration agent. Formula: (CH₃)₂C(OCH₃)₂   Formula Weight: 104.15 CAS #: 77-76-9 Specific Gravity: 0.849

(Sodium Potassium Tartrate) KNaC4H4O6·4H2O F.W. 282.22 CAS #6381-59-5 Assay 99.0-102.0% Water 21.0-27.0% Used with bismuth subnitrate for staining polysaccharides, including glycogen without oxidizing agents. Shinji, Y., et al (1975). A new electron microscopic histo-cyto chemical…

propanol base. Fast drying. Average grain size less than 1 µm and Silver content is 60%. Sheet resistance is 0.02 ohm per square inch @ 1 mil thickness. Comes with a brush attached to the cap. Service temperature is 30 minutes at 200 deg C.

For all of the best results we offer ready to use Perfusion washes and fixatives which are recommended by the NeuroScience Association. All of our solutions are ready made and are of the highest quality. We have three groups of solutions commercially available. Group I: Perfusion…

This fixative contains 3% glutaraldehyde and 2% formaldehyde in 0.1M phosphate buffer, pH 7.4. Karnovsky’s with formalin 2% and Biological glutaraldehyde 3% in 0.1m Phosphate Buffer.

Osmium Tetroxide, Crystalline, Highest Purity, 99.95% (Osmic Acid Anhydride) Formula: OsO₄   Formula Weight: 254.20   CAS #: 20816-12-0 Melting Range: 39.5-41.0°C Boiling Point: 129.7°C Vapor Pressure @25°C: 9.8 mmHg …

Formula: AgNO₃   Formula Weight: 169.89   CAS #: 7761-88-8 UN #: UN1493 Assay: 99.9+% References for Silver stain: Swift, J.A. (1968). The electron histochemistry of cystine-containing proteins in thin transverse sections…

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…

Aron Alpha , type 200 is a one component, room temperature curing structural adhesive composed mainly of alpha cyanoacrylate monomer in a liquid state. When this monomer is applied in a single thin coating to the bonding surface of the material, it instantly solidifies through polymerization to…

An epoxy hardener. Formula: C₁₀H₁₀O₃   Formula Weight: 178.19   CAS #: 25134-21-8 Specific Gravity @20/20°C: 1.245 Boiling Point @ 10mm Hg: 140°C

Formula: CH₂OCHCH₂OC₆H₄C₁₅H₂₇   Formula Weight: 356   W.P.E.: 490 15-M-Phenylglycidyl-(n-pentadecca-8,11-dienyl) CAS #: 106-89-8 Specific Gravity: 0.97 at 24°C A…

(2-Hydroxyethyl methacrylate monomer, inhibited; HEMA) Formula: C₆H₁₀O₃   Formula Weight: 130.14   CAS#: 868-77-9 Specific Gravity: 1.07 Boiling Point: 67°C Inhibited with approximately 330ppm MEHQ A water…

(Tritolyl Phosphate) Formula: (CH₃C₆H₄O)₃PO   Formula Weight: 368.37   CAS #: 1330-78-5 Specific Gravity (H₂O=1): 1.16 A mixture of isomeric Tritolyl Phosphates, usually excluding the very toxic group…

(Sodium Methylate) Formula: CH₃ONa   Formula Weight: 54.03   CAS #: 124-41-4 Used in the removal of resin from sections.

A combination of Sodium Cacodylate, Formalin, and Glutaraldehyde. Ready to use CAS #: 111-30-8, 7758-80-7, 500-00-0, 1310-73-2, 7732-18-5

Formula: NaHCO₃   Formula Weight: 84.01   CAS # 144-55-8 Assay: 97.7-100.3%

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…