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10% GLUTARALDEHYDE IN ETHANOL. Specially Prepared-10% Solution, Rapid-Freezing on polished metal surface, at the temp. of liquid helium, followed by freeze-substitution in osmium-acetone, useful technique for capturing rapid cellular events and for preser

10% GLUTARALDEHYDE IN ACETONE. Specially Prepared-10% Solution, Rapid-Freezing on polished metal surface, at the temp. of liquid helium, followed by freeze-substitution in osmium-acetone, useful technique for capturing rapid cellular events and for preser

GLUTARALDEHYDE 50% BIO GRADE. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Purity is guaranteed. Sealed under dry nitrogen.

GLUTARALDEHYDE 50% BIO GRADE. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Purity is guaranteed. Sealed under dry nitrogen.

GLUTARALDEHYDE 50% BIO GRADE. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Purity is guaranteed. Sealed under dry nitrogen.

GLUTARALDEHYDE 25% BIO GRADE. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Purity is guaranteed. Sealed under dry nitrogen.

GLUTARALDEHYDE 25% BIO GRADE. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Purity is guaranteed. Sealed under dry nitrogen.

GLUTARALDEHYDE EM GRADE 70%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 50%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 50%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 50%. Packaging allows puncture special non-reactive seal with a hypodermic syringe and draw out exact quantity of Glutaraldehyde needed without opening container. Assures freshness and purity of Glutaraldehyde at all times

GLUTARALDEHYDE EM GRADE 25%. Packaging allows puncture special non-reactive seal with a hypodermic syringe and draw out exact quantity of Glutaraldehyde needed without opening container. Assures freshness and purity of Glutaraldehyde at all times

GLUTARALDEHYDE EM GRADE 25%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 25%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 10%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 10%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 10%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 10%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C:1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 8%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C: 1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 8%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C: 1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

GLUTARALDEHYDE EM GRADE 8%. OCHCH2CH2CH2CHO CAS #111-30-8 Specific Gravity at 20/20[degree]C: 1.131 Purified to EM Grade by all-glass vacuum-distillation. Free from polymers and contaminants. Each lot is tested and guarantee its purity. Sealed under dry nitrogen

2% FORMAL./.02% PICRIC ACID IN SODIUM PHOSPHATE BUFFER. Premixed, prebuffered fixatives, pH adjusted for immediate use. Freshly prepared for maximum shelf life. Immediate fixation of specimens without transfer. 2% Formaldehyde/0.02% Picric Acid in 0.1M So

.2% FORMAL./.1% CHROMIC ACID IN SODIUM CACODYLATE BUFFER. Premixed, prebuffered fixatives, pH adjusted for immediate use. Freshly prepared for maximum shelf life. Immediate fixation of specimens without transfer. 0.2% Formaldehyde/0.1% Chromic Acid in 0.1

FORMVAR 1% SOLUTION. in Ethylene Dichloride 1.00%. Microfiltered-ready to use.

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 - 0.999, Iron. - 0.5ppm, Copper - 0.1ppm, Lead - 0.5ppm, Zinc - 0.5ppm

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 - 0.999, Iron. - 0.5ppm, Copper - 0.1ppm, Lead - 0.5ppm, Zinc - 0.5ppm

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 - 0.999, Iron. - 0.5ppm, Copper - 0.1ppm, Lead - 0.5ppm, Zinc - 0.5ppm

FORMALIN 10% BUFFERED IN PHOSPHATE. 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[degree]C

FORMALDEHYDE 16% SOL.. (Paraformaldehyde Solution) EM Grade Paraformaldehyde, methanol free solution. More efficient and rapid penetrant fixative used in combination with Glutaraldehyde and Acrolein fixatives. Easy to break, prescored, 10ml ampoules

FORMALDEHYDE, 37%, REAGENT. A.C.S. HCHO Specific Gravity - 1.09 A.C.S. Specifications: Assay - 35.5 to 38.0%, Residue after ignition - 0.00005, Color (A.P.H.A.) - 10, Sulfate (SO4) - 0.00002, Heavy Metal (as Pb) - 5ppm, Titrate Acid - 0.006 meq/g, Chloride - 5ppm, Iron - 5ppm

FLUORESCEIN ISOTHIOCYANATE, ISOMER I. Certified (FITC) C21H11NO5S - F.W. 389.39 - CAS #3326-32-7 Assay 90% Water soluble.

FERRITIN CATIONIZED. CAS #9007-73-2 Cationized ferritin is prepared by coupling ferritin from horse spleen with N,N-dimethyl-1,3-propanediamine (DMPA). Sterile filtered solution in 0.15M NaCl. Ferritin Concentration: 10mg per ml, coupled with DMPA.

FERRIC CHLORIDE. Hexahydrate, Reagent, A.C.S. FeCl3-+6H2O Assay: 97.0-102%, Insoluble Matters.: 0.0001, Nitrate (about 0.001%): To Pass Test, Phosphorous Compound: 0.0001, Sulfate: 0.0001, Arsenic: 0.00002, Copper: 0.00003, Zinc: 0.00003

FAST GREEN FCF, CERTIFIED. C.I. 42053 (Food Green 3) C37H34O10N2S3Na2 CAS #2353-45-9 Solubility:4.0% Water; 9.0% Alcohol; 8.0% Cellosolve; 6.25% Glycol; 0.0% Xylene Dye is resistance to fading. Mammalian tissue stain for visualizing collagen, muscle

FARNESOL. (3,7,11-Trimethyl-2,6,10-dodecatrien-1-ol) C15H26O - F.W. 222.57 - CAS #4602-84-0 Specific Gravity: 0.886 Mixture of Stereoisomers: Approx. 90% Synthetic

ETHYLENE GLYCOL DIMETHACRYLATE. (Ethylene dimethacrylate) C10H14O4 - F.W. 198.22 - CAS #97-90-5 Specific Gravity: 1.053 b.p. 66-68[degree]C Inhibited with 100 ppm HQ. (Hydroquinone)

EUKITT MOUNTING MEDIUM. Adhesive and sealant for use with glass, non plastic and other non-reactive materials. Spreads quickly and evenly. Fast-drying (20 minutes). Refractive index close to glass (1.510). Chemically neutral. No reaction to staining.

EDTA. Disodium Salt, Dihydrate, A.C.S. (Ethylenediamine Tetraacetic acid) Na2C10H14O8-+2H2O - F.W. 372.20 - CAS #6381-92-6 Organic chelating for staining glutaraldehyde fixed tissues, pre-stained with uranyl acetate, followed by lead citrate. Bernard, W. J

ERYTHROSIN B, CERTIFIED. C.I. #45430 (Acid Red 51, Erythrosin extra Bluish; Eosin J; Iodeosin B; Pyrosin B) C20H6O5I4Na2 - F.W. 879.87 - CAS #16423-68-0 Solubility: 10.0% Water; 5.0% Alcohol; 7.0% Cellosolve; 8.25% Glycol; 0.0% Xylene.

EPON 815 RESIN. CAS # NA Specific Gravity: 1.13 An aromatic resin.

EMBED 812 RESIN. CAS # N.A. Specific Gravity: 1.08-1.10 Same characteristics as Epon 812, physically, and provides same results in preservation, handling, curing and sectioning. May cause etching on selected plastics.

EOSIN Y, CERTIFIED. (Acid Red 87, Eosin Yellowish) C2cH6Br4Na2O5 CAS #173772-87-1 Solubility: 44.0% Water; 2.0% Alcohol; 25.0% Cellosolve; 27.5% Glycol; 0.0% Xylene. Used with Hematoxylin for showing cell nuclei in embryos and kidneys.

EOSIN Y, CERTIFIED. (Acid Red 87, Eosin Yellowish) C2cH6Br4Na2O5 CAS #173772-87-1 Solubility: 44.0% Water; 2.0% Alcohol; 25.0% Cellosolve; 27.5% Glycol; 0.0% Xylene. Used with Hematoxylin for showing cell nuclei in embryos and kidneys.

ENTELLAN. Rapid mounting media for microscopy. Long life preparations, without bubble formation at high ambient temperatures. For all dehydrated microscopic preparations. Cure time - 20 min at room temp. Colorless with an acid number less than 2.50

LR WHITE ACCELERATOR. Very low viscosity (8cps), non-toxic resin. Polar monomer polyhydroxylated acromatic acrylic resin. Cured by heat or UV light. Sections of polymerized resin are hydrophilic. Consists of: 500ml LR White Resin, 10ml UV accelerator, LR

LR GOLD RESIN. Offers the histochemist and immunocytochemist the advantage of working with unfixed tissues at low temperatures, allowing many fixation-sensitive procedures to be carried out in 1-4 microns resin sections at -25[degree]C using visible light.

LOWICRYL K4M MONOSTEP. MonoStep Single Component Embedding Media. Pre-mixed, ready to use resin, saves you time and minimizes chemical contact.- MonoStep Lowicryl is ideal for use in immunohistochemistry and immunolabeling.- Store at room temperature

MICRO-BED EMBEDDING RESIN. is supplied as a single component-ready to use pre-mixed resin. Micro-Bed can be polymerized in either EMS embedding capsules or gelatin capsules by either heat(55-65[degree]C) or UV (wavelength 365nm) light at low temperatures

COMPONENT B HARDENER. Durcupan ACM, Epoxy Resin, An aromatic polyepoxide; a colorless resin of relatively low viscosity, with virtually no shrinkage. Single Component B

COMPONENT A/M RESIN. Durcupan ACM, Epoxy Resin, An aromatic polyepoxide; a colorless resin of relatively low viscosity, with virtually no shrinkage.

SINGLE COMPONENT B. Durcupan, Water Soluble, A water soluble embedding medium for EM based on an aliphatic polyepoxide. A Fluka A.G. Buchs. Switzerland-Registered Trademark. Single Component B

DDSA (DODENYL SUCCINIC ANHYDRIDE). C16H26O3 F.W. 266.38 CAS #25377-73-5 Specific Gravity: 1.005

DDSA SPECIALLY DISTILLED. (Dodecenyl Succinic Anhydride), an ultra pure DDSA (much better than DDSA), distilled by a new, slower process, which has a distinct effect on the color control of embedding resins, and offers complete infiltration of tissues.

DDSA SPECIALLY DISTILLED. (Dodecenyl Succinic Anhydride), an ultra pure DDSA (much better than DDSA), distilled by a new, slower process, which has a distinct effect on the color control of embedding resins, and offers complete infiltration of tissues.

DMA. N,N-Dimethylaminoethyl Methacrylate C8H15NO2 F.W. 157.21 CAS #2867-47-2 Specific Gravity: 0.933 b.p. 76[degree]C A water soluble monomer.

N,N-DIMETHYLANILINE. C6H5N(CH3)2 F.W. 121.18 CAS #121-69-7 Specific Gravity: 0.96 g/ml

DIMETHYL SULFOXIDE, (DMSO). Reagent, A.C.S. (CH3)2SO FW 78.13 CAS #67-68-5 A.C.S. Specifications: Appearance: Clear, Colorless Density (g/ml) at 25[degree]C: min. 1.095 Freezing Point: Not below 18.0[degree]C Residue after evaporation: 0.0001 Water: 0.002

DPX MOUNTANT. For microscopy. A mixture of Distyrene, a plasticizer, and xylene. A colorless synthetic resin mounting media which replaces Xylene-Balsam. It preserves the stain and dries quickly.

DMP (2,2-DIMETHOXYPROPANE). (Acetone Dimethyl Acetal) (CH3)2C(OCH3)2 CAS #77-76-9 Used as dehydration agent. Optimization and investigation of use of 2,2-dimethoxypropane as dehydration agent for plant tissue in TEM.

DMP (2,2-DIMETHOXYPROPANE). (Acetone Dimethyl Acetal) (CH3)2C(OCH3)2 CAS #77-76-9 Used as dehydration agent. Optimization and investigation of use of 2,2-dimethoxypropane as dehydration agent for plant tissue in TEM.

DIGITONIN. Crystal, Reagent C56H92029 F.W. 1229.34 CAS #11024-24-1 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

ETHYLENE DICHLORIDE. 1,2-Dichloroethane, Reagent, A.C.S. CH2ClCH2Cl A.C.S. Specifications Color (A.H.S.A.): 10 Appearance: Clear Odor: Resembling odor of CHCl Density at 25[degree]C: 1.241 -1.251 Boiling Range, Incl. 83.5[degree]C: 20[degree]C Residue after Evaporation: 0.00002

(DGD) DIETHYLENE GLYCOL DISTEARATE. Removable embedding medium. Easy to cut, thin or thick embedment free sections and ribbons easily obtainable. Enhances integrity of specimen - floats on water. Sections produce interference colors. Ethanol and n-butyl a

DBP (DIBUTYL PHTHALATE). C6H4(COOC4H9)2 F.W. 278.35 CAS #84-74-2 Specific Gravity: 1.049 A plasticizer for epoxy resins.

DBP (DIBUTYL PHTHALATE). (C6H4(COOC4H9)2 F.W. 278.35 CAS #84-74-2 Specific Gravity: 1.049 A plasticizer for epoxy resins.

DAB-HCL. 3,3-Diaminobenzidine Tetra Hydrochloride, EM Grade C12H14N4-+4HCl F.W. 360.12 CAS #7411-49-6 m.p. 300[degree]C Used for histochemical localization of peroxidase with DAB and in immunocytochemistry. Sternberger, et.al. J. Histochem, Cytochem. 18,215 (1970

TMB. 3,3'5,5'-Tetramethylbenzidine C16H20N2 CAS #54827-17-7 m.p. 166-169[degree]C Assay 98% A non-carcinogenic substitute for DAB and DAB-HCl. Used as sensitive and specific reagent for detection of blood.

TMB, HCL. Dihydrochloride TMB C16H20N2-+2HCl F.W. 313.30 CAS #64285-73-0 m.p. 300[degree]C Assay 98% (Cl)

DER 736 RESIN. CAS #041638-13-5 Specific Gravity: 1.14 A light colored, flexible epoxy. Epoxide equivalent weight: 175-205. Used to simplify infiltration in combination with Epon 812 (Embed 812). Kushida, J. Electron Micro. 16,278 (1964)

DEXTROSE, ANHYDROUS, REAGENT. (D-Glucose) C6H12O6 FW 180.16 CAS #50-99-7 Assay Purity: 0.998 Insolubles: 0.00005 Moisture (105[degree]C): 0.002 Ash: 0.0002 Chloride: 0.0001 Sulfate and Sulfite: 0.00005 Arsenic: 0.0000004 Heavy Metal (as Pb): 0.0000005 Iron: 0.00

CRYSTAL VIOLET, CERTIFIED. C.I. 42555 (Basic Violet 3; Gentian Violet; Methyl Violet 10B; Hexamethyl Violet) C25H30N3Cl F.W. 407.99 CAS #548-62-9 Solubility: 9.0% Water; 8.75% Alcohol; 7.5% Cellosolve; 7.0% Glycol; 0.0% Xylene

CRESYL FAST VIOLET, CERTIFIED. C.I.# 51180 (Cresyl Violet Acetate) C18H15N3O3 F.W. 312.34 CAS # 10510-54-0 Solubility: 0.13% water

LEIT-C-PLAST. A special adhesive with very high electrical conductivity and permanent plasticity for the preparation of big specimens in SEM work.

CCC CARBON ADHESIVE. Electrically Carbon Conductive Cement for specimen mounting in all SEM work. After drying cement, immediate investigation of conductive specimens is possible. Non-conductive specimens need only coated with carbon or metal.

CCC THINNER. Electrically Carbon Conductive Cement for specimen mounting in all SEM work. After drying cement, immediate investigation of conductive specimens is possible. Non-conductive specimens need only coated with carbon or metal.

COLLOIDAL GRAPHITE EXTENDER. Isopropanol base: Flat surface texture. The average flake size is 1um. Service temperature is 204[degree]C.

COLLOIDAL GRAPHITE, ALCOHOL BASE. Isopropanol base: Flat surface texture. The average flake size is 1um. Service temperature is 204[degree]C.

COLLOIDAL GRAPHITE, WATER BASE. Flat surface texture. The average flake size is 1um. Service temperature: 306[degree]C.

COLLODION 5% SOLUTION. USP 25% Alcohol, 75% Diethyl Ether in Pyroxylin CAS #9004-70-0

CHLOROFORM, GLASS DISTILLED. Specifications: UV Absorption: 1 cm cell vs H2O

CHLOROFORM GLASS DISTILLED. Specifications: UV Absorption: 1 cm cell vs H2O

COBALT NAPTHENATE. Solution (55% Cobalt Napthenate; CAS#61789-51-3 and 45% Mineral Spirit; CAS #64742-88-7) Used as an activator for the Vestopal embedding resin.

CADMIUM IODIDE. Crystal, Reagent, A.C.S. CdI2 F.W. 366.21 CAS #7790-80-9 Assay min. 99.0% Used for negative staining. m.p. 387[degree]C Possible Carcinogen.

CARBOHYDRAZIDE. CO(NHNH2)2 - F.W. 90.08 - CAS #497-18-7 m.p. 152-153[degree]C For GACH embedding kit. A water-miscible, lipid-retaining, embedding polymer for E.M.. Heckman, et. al. Ultrastruct. Res. 42,156 (1973).

CARDOLITE NC-513. CH2OCHCH2OC6H4C15H27 F.W. 356 W.P.E. 490 15-M-Phenylglycidyl-(n-pentadecca-8,11-dienyl) CAS #106-89-8 Specific Gravity: 0.97 at 24[degree]C A Long-chain, monofunctional epoxide; stable when mixed with resins. Viscosity 50 cps at 25[degree]C.

CADMIUM IODIDE. Crystal, Reagent, A.C.S. CdI2 F.W. 366.21 CAS #7790-80-9 Assay min. 99.0% Used for negative staining. m.p. 387[degree]C Possible Carcinogen.

SODIUM CACODYLATE TRIHYDRATE. Sodium Salt, TrihydrateSodium Cacodylate Sodium dimethyl arsenate C2H6AsNaO2.3H2O CAS #124-65-2 Identity: Conforming Appearance: Small Crystals Color: White Odor: None Aqueous solution (2g+10ml): Colorless Assay %: 99.52 Loss

N-BUTYL ALCOHOL. Reagent, A.C.S. (Butanol) CH3CH2CH2CH2OH F.W. 74.12 CAS # 71-36-3 Specific Gravity: 0.81 Assay 0.994 Residue after evaporation 0.00005 Titratable acid 0.0008meq/g Butyl Ether 0.002 Water 0.001

CACODYLIC ACID, FREE ACID. (Dimethylarsinic Acid) (CH3)2AsO2H F.W. 137.99 CAS #75-60-5 Assay 99.5%

CACODYLIC ACID, FREE ACID. (Dimethylarsinic Acid) (CH3)2AsO2H F.W. 137.99 CAS #75-60-5 Assay 99.5%

N-BUTYL ALCOHOL. Reagent, A.C.S. (Butanol) CH3CH2CH2CH2OH F.W. 74.12 CAS # 71-36-3 Specific Gravity: 0.81 Assay 0.994 Residue after evaporation 0.00005 Titratable acid 0.0008meq/g Butyl Ether 0.002 Water 0.001

N-BUTYL ACETATE. Reagent, A.C.S. CH3COO(CH2)3CH3 F.W. 116.16 CAS #123-86-4 b.p . 127[degree]C Specific Gravity: 0.88

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 firm attachment for slotted/meshed grids.

BUTVAR-B-98 SOLUTION. Stock solution : 1.0% in Chloroform.

BUTANEDIOL DIGLYCIDYL ETHER. 1,4-Butanediol Diglycidyl Ether; (Araldite RD-2) C10H18O4 F.W. 202.2 CAS #2425-79-8 Approx. 70% Specific Gravity: 1.10

BUTOXY ETHANOL. 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[degree]C

TRIS MALEATE BUFFER, .2M, PH 6.4-8.0. Tris, (hydroxymethyl) aminomethane maleate, Tris Maleate Buffer, 0.2M pH range 6.4-8.0

TRIS, CRYSTAL. Tris (Hydroxymethyl) Aminomethane, Free-base, Reagent Grade White crystalline powder C4H11NO3 F.W. 121.14 CAS #77-86-1 A 40% (w/v) aqueous solution. It is clear and colorless. Assay 99.9% Water .0.2% Heavy Metals.-2ppm

SODIUM CACODYLATE BUFFER, 0.2M. Sabatini, et. al. J. Cell Biol. 17,19 (1963). 0.2M pH 7.4 (or specify at time of order).

SYM-COLLIDINE, REAGENT. 2,4,6-Collidine; 2,4,6-Trimethylpyridine, (C5H2N)(CH3)3 CAS #108-75-8 F.W. 121.18, Assay: 99% Specific Gravity: 0.9170

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