Formula: UO₂(OCOCH₃)₂·2H₂O   Formula Weight: 424.14 CAS #: 541-09-3 Assay: 98.0-102.0%

Very quick reaction times have led to Difco™ being the trusted leader in antisera-typing. Available with complete panels for typing Salmonella O & H, Shigella, Neisseria, E. coli, Vibrio, Listeria, Bordetella and Haemophilus.

CAS: 81-88-9 EC No: 201-383-9 MDL No: MFCD00011931 RTECS: BP3675000 Powder Molecular Formula: C₂₈H₃₁ClN₂O₃ MW: 479.02 Melting Point: 210-211° (decomposes) Density (g/mL): 0.790

Conventional stain used for H&E staining as well as counterstaining in immunohistochemistry (IHC) and cytology procedures. Ready to use formulation optimized for progressive nuclear staining with lower risk of overstaining than other formulations. Filtration and acid alcohol differentiation…

MF: C18H14Na2N2O8S2 MW: 496.43

A new electron dense stain for elastic tissue.

We are now offering Uranyl Acetate pre-made and ready to use solution for making your work easier. The following percentages are avaialble off the shelf (1, 2, 3, 4). Formula: UO₂(OCOCH₃)₂·2H₂O Formula Weight: 424.14 CAS #: 541-09-3 …

A gentle destain for destaining Coomassie stained gels. Features Contains Methanol <5% and Acetic Acid <10%

2,6-dichlorophenolindophenol (DCPIP) is a blue chemical compound used as a redox dye. In Oxidized form DCPIP is blue; whereas in reduced form DCPIP is colorless. The rate of photosynthesis can be measured by the rate at which this dye changes color (is reduced) when exposed to light in a…

P-dimethylaminobenzaldehyde, to test indole production in indole broth or for biochemical strip/cupule methods. Positive indole reactions with Kovac's will turn pink to red. Does not require a xylene or chloroform extraction as with Ehrlich's Reagent. Kovac's Reagent is not for rapid…

Bromophenol blue migrates at approximately the same rate as 300-500bp DNA in agarose gel and at the buffer front in protein polyacrylamide gels. Applications Bromophenol blue is a tracking dye for alkaline and neutral buffer systems. It is used as a tracking dye in DNA, RNA (agarose) and…

For use in rapid determination of sodium hippurate hydrolysis reactions in bacteria. Useful for the presumptive identification of Campylobacter, Listeria, and Gardnerella vaginella.

An aqueous solution of phenol, glycerine, isopropyl alcohol, rhodamine B and auramine O.

CAS: 603-45-2 EC No: 210-041-8 MDL No: MFCD00001624 Powder Molecular Formula: C₁₉H₁₄O₃ MW: 290.32

Used as a differential method to detect the difference between those organisms which decolorize with treatment of acid alcohol, and those that do not, such as the mycobacteria. This is the "Cold Stain" method that does not require heating of the slide. Kit includes one 8 oz. bottle…

MF: C28H30O4 MW: 430.54

FD Congo Red Solution™ is formulated for the staining of amyloid deposits in the central nervous system. This solution may be used with frozen or paraffin-embedded sections of preferably formaldehyde-fixed tissues. The following procedure has been proven to produce excellent staining on…

Sudan IV has been used industrially to color oils, waxes, shoe polish, greases, oily-resin lacquers, varnishes, cellulose acetate and acrylic resins, and in wood stains. As a biological stain, it is used primarily to stain lipids and fatty substances present in cells and tissues. The color imparted…

This dye is added to protein samples prior to electrophoresis on SDS PAGE gels.

Composition: Water: ≥ 94.9% Acetic Acid: 5.0% Ponceau S: 0.1%

Formula: Pb(NO₃)₂   Formula Weight: 331.21   Grade: Reagent A.C.S. CAS #: 10099-74-8 UN #: 1469

Calcein is an indicator for the determination of calcium by titration with EDTA. The excitation wavelength and emission wavelength are 495/515 nm. It is suitable for fluorometric determination of calcium. It does not fluoresce in strong alkaline solution, but an intense fluorescence appears in the…

FD Luxol Fast Blue Solution™ is made for the staining of myelin sheaths in the central nervous system. This solution may be used with frozen or paraffin-embedded sections, preferably formaldehyde-fixed tissues. The following procedure has been proven to produce excellent staining on sections…