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…

CAS: 2437-29-8 EC No: 219-441-7 MDL No: MFCD00011766 RTECS: BQ1190000 UN No: UN2811; Haz Class: 6.1; Packing Group: III Solid Molecular Formula: C₅₂H₅₄N₄O₁₂ MW: 927.02 Melting Point: 144-150°

CAS: 548-62-9 EC No: 208-953-6 MDL No: MFCD00011750 RTECS: BO9000000 UN No: UN3077; Haz Class: 9; Packing Group: III Powder Molecular Formula: C₂₅H₃₀ClN₃ MW: 407.99 Melting Point: 205° (decomposes)

CAS: 115-41-3 EC No: 204-088-3 MDL No: MFCD00005868 Powder Molecular Formula: C₁₉H₁₄O₇S MW: 386.38

Formula: Na₂C₄H₄O₆·2H₂O   Formula Weight: 230.08   CAS #: 6106-24-7 Assay: 99.5%-101.0% pH of a 5% solution: @25°C-7.0-9.0 Loss on Drying: @150°C-15.61-15.71%

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…

CAS: 3844-45-9 EC No: 223-339-8 MDL No: MFCD00001657 RTECS: BQ4725000 Powder Molecular Formula: C₃₇H₃₄Na₂N₂O₉S₃ MW: 792.85 Melting Point: 283° (decomposes)

CAS: 531-55-5 EC No: 208-511-2 MDL No: MFCD00011935 Powder Molecular Formula: C₁₅H₁₆ClN₃S MW: 305.83 Melting Point: 205-210° (decomposes)

Brilliant Sulfaflavine is not the same as FIAT (Brilliant Sulfoflavin FF; Acid Yellow 7) which has only one methyl group para to the nitrogen. Brilliant sulfaflavine was used as fluorescent tracers to study the application rate of foliar fungicides when applied to soybeans for the control of rust.

CAS: 130-22-3 EC No: 204-981-8 MDL No: MFCD00013049 RTECS: CB1095300 Powder Molecular Formula: C₁₄H₇O₇SNa MW: 342.26

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…

CAS: 547-57-9 EC No: 208-924-8 MDL No: MFCD00007499 RTECS: DB6145180 Powder Molecular Formula: C₁₂H₉N₂NaO₅S MW: 316.27

CAS: 1320-06-5 EC No: 215-295-3 MDL No: MFCD00003898 Powder Molecular Formula: C₂₆H₂₄N₄O MW: 408.51 Melting Point: 120° (decomposes)

Sulforhodamine B is a fluorescent dye. Sulforhodamine B can be used as a protein tag - by sulfamido condensation with a proteinaceous substrate containing a primary amine function. Sulforhodamine B will fluoresce red. Because of its red fluorescence it can be used in conjuction with fluorescein…

Acriflavine Hydrochloride is a mixture of 3,6-diamino-10-methylacridinium chloride and 3,6-diaminoacridine (approximately an 9 to 1 mixture respectively). Acriflavine Hydrochloride acts as an intercalating dye and also reported to inhibit mitochondriogenesis. It is an antiseptic and has been…

A red, anionic xanthene dye, has been used as a contrast or counter stain to hematoxylin, crystal violet and other nuclear stains, in both plant and animal tissue. Erythrosin B sodium salt is used as a counter stain to hematoxylin, crystal violet and other nuclear stains, in both plant and…

CAS: 76-54-0 EC No: 200-968-6 MDL No: MFCD00005047 Solid Molecular Formula: C₂₀H₁₀Cl₂O₅ MW: 401.20 Melting Point: 280° (decomposes)

Primuline is a dye containing the benzothiazole ring system. The primulines are considered derivatives of dehydrothiotoluidine (aminobenzenyltoluylmercaptan). It is pale yellow in solution under visible light and is blue fluorescent under ultraviolet. Primulin is used in retrograde double…

CAS: 1934-21-0 EC No: 217-699-5 MDL No: MFCD00148908 RTECS: UQ6400000 Solid Molecular Formula: C₁₆H₁₉N₄Na₃O₉S₂ MW: 534.36 Melting Point: 300°

Hematoxylin is Gill’s Formulation 2; a nuclear counter stain of blue-violet color. It is extracted from the heartwood of the logwood tree. When oxidized it forms haematein, a compound that forms strongly coloured complexes with certain metal ions, the most notable ones being Fe(III) and…