Colour Index #26125
C26H24N4O F.W. 408.51, Solvent Red 27
This dye is soluble in a range of organic solvents and stains fats, oil and waxes. In histology Oil Red O is a favoured lipid stain.
Colour Index #16230
F.W. 452.38. Kornhauser's Quad stain for most elementary structures of tissues. Stain Tech., 18,985 (1943)
Mallory's tissue stain for connective tissue. Mallory J., Exper.Med. 5,15 (1900)
Used with Safranin and Tannic Acid for showing shoot apex in plant tissue. Stain Tech., 18,105 (1943)
Colour Index #15510.
General stain with eosin and azur C. French, Stain Tech., 1,79 (1926) Counter-stain for Heidenhain's Haematoxylin in animal histology. Substitute for Orange G if a stronger yellow is desired for contrast.
J.Lab.Med., 28,995 (1943)
Natural Red 28.
A stain for elastic tissue and for hepatitis-B surface antigen.
Common post-fixative in EM. Spectroscopy grade, 99.95% minimum.
Request data sheet.
Toxic vapour, use gloves & fume hood, protect eyes.
We ship osmium packed with some full-cream milk powder. In case of breakage it like cornoil will inactivate osmium tetroxide's harmful vapours. Powder is not messy like an oil
C010 and C012 MSDS
EM grade, purified
OH(CH2O)n H F.W. Average: 600 CAS #30525-89-4
A fast penetrating E.M. fixative in combination with other fixatives.
Paraformaldehyde is the condensation product of methylene glycol, a substance not so far isolated in its pure form; it is a white solid with a formaldehyde content between 78 and 98% and is supplied either as a Prill or Granular - ask. All forms contain more than 95.5% paraformaldehyde content. The Prill and Granular forms are small, free-flowing, dust-free beads, the most desired by EM users. A fast-penetrating EM fixative used in combination with Glutaraldehyde, Acrolein, and Osmium Tetroxide.
Karnovsky, M.J., J. Cell Biol., 27, 137A (1965).
Glauert, A. Pract.Methods in E.M. Vol.3 North-Holland Pub. (1974)
Hayat, M.A. Principles & Tech., of EM (Univ. Park Press), 68 (1981)
See also C004 prepared paraformaldehyde.
Paraformaldehyde solutions are listed (on page C4) as Formaldehyde
Shipping GA within Australia now costs real money - we suggest switching to prepared Paraformaldehyde
Basic Red 9 Colour Index #42500
For: Ziehl - Neelsen's and Kinyoun's stains for acid fast organisms; PAS stain for mucosubstances; Feulgen stain for nuclear DNS; Aldehyde Fuchsin stain for pancreatic beta cells and hepatitis surface antigen; Endo media. Total dye content 97%.
Pyroxylin, in strips.
A highly purified form of cellulose nitrate; prepared for embedding tissues for sectioning and for making support films for EM grids from 1% parlodion in Amyl Acetate.
(Phenolsulfonephthalein) F.W. 354.38, C19H14O5S, CAS#143-74-8
A standard indicator for preparing buffers.
pH range 6.4-8.2
Colour Index #45410
For use in Mallory's phloxine-methylene blue stain. Minimum dye content 80%.
Tungstophosphoric Acid. F.W. 2880.17 H2O.
Crystalline powder. Used for negative and en‐block staining. Refrigerate.
F.W. 335.3; crystal, 1.5 Na, Piparazine. N,N'-bis-(2-Ethane Sulfonic Acid) Useful pH range 6.4 -7.2
Good, N. E. et al., J Biochem. (1966)
Poly-l-lysine treated surfaces offer better adhesion for histological sections and other thin specimens.
0.1% w/v aqueous solution; preservative. Adhesive for tissue sections on glass slides. Immunohistochemical techniques, gold labelling, microwave procedures.
Method: Apply 15μl of 0.1% Poly-L-Lysine solution the surface of slides or vessels required to gain better adhesion; then leave at room temperature for one hour or more. Longer times, up to overnight also work well.
Remove the solution and rinse the treated surface twice with distilled water.
To dry, stand surface vertically. The item is then ready to use. Some users prefer to keep the surface wet until ready for use.
The wax is soluble in most organic solvents, including alcohol, ethers, esters, ketones and hydrocarbons. The wax is water tolerant, almost opaque, and sections easily. No electrification of ribbons occurs during sectioning. Sections of 2 microns and more may be cut at room temperatures between 10 and 22°C. It is advantageous to keep the wax in its solid state prior to use.
KI F.W. 166.00. CAS#7681-11-0
See Bismuth carbonate for references on use.
KMnO4 F.W. 158.03 CAS#7722-64-7
We can only supply this item to bona fide laboratories.
Technical grade ‐ Strong oxidising agent
KMnO4 CAS#7722‐64‐7 MSDS ‐ It is a salt consisting of K and MnO4− ions.
Also known as permanganate of potash, Condy's crystals, Chameleon mineral, or Potassium manganate(VII).
It dissolves in water giving an intense purple solution.
Potassium permanganate decomposes when exposed to light: 2 KMnO4(s) → K2MnO4(s) MnO2(s) O2(g)
We can only supply this item to bona fide laboratories.
This produces the same results in preservation, handling and sectioning as the discontinued Epon 812.
May be substituted for Epon 812 in all Epon 812 formulations.
Our replacement for the discontinued Epon 812. It produces the same results in preservation, handling and sectioning and may be substituted for Epon in all standard Epon 812 formulations. Dr. John Luft: Improvements in Epoxy Resin Embedding Methods J.Biophys. Bio-Chem. Cytol., Vol.9, 409 (1961) Glauert has recommended that twice the quantity of BDMA in lieu of DMP-30 be used.
Procure is substituted for Epon 812 in Mollenhauer's formula. Stain Tech., 39, 11 (1964) Hardness may be varied. Excellent cutting properties, preservation and staining. Glauert has recommended that twice the quantity of BDMA in lieu of DMP-30 be used.
Kits are assembled as needed.
1,2-Epoxypropane, Methyloxirane E.M. Grade. F.W. 58.08 CH3CHCH2O M.P. -112°C. B.P. 34°C. F.P. -37°C.
Vapour pressure @ 33°C 980 mbar. Ignition temperature 430°C Solvent agent for epoxy resins. Used widely for infiltration and gradual replacement of dehydration agent.
Fumehood and gloves advised; carcinogen.