CAS: 6104-58-1 EC No: 228-058-4 MDL No: MFCD00078482 Powder Molecular Formula: C₄₇H₄₈N₃NaO₇S₂ MW: 854.02

Coomassie® Brilliant Blue G-250 is a useful dye for SDS gels as it readily stains proteins with minimal background color. Protein bands can be visualized during staining. Coomassie Brilliant Blue G-250 is a protein stain in electrophoresis. Brilliant Blue G has been used in the Bradford…

CAS: 62758-13-8 EC No: 263-718-5 MDL No: MFCD00005036 RTECS: SP7700000 Powder Molecular Formula: C₁₂H₆NNaO₄ MW: 251.18

p-Iodonitrotetazolium Violet is used as a electron acceptor for the colorimetric assay of various dehydrogenases.

Alcian Blue 8GX is a cationic dye used to quantitatively determine glycosaminoglycans by forming insoluble complexes in solution. Alcian Blue 8GX can be used to determine proteins based on their Resonance Light Scattering by strongly enhancing the signals. It is useful as a bacterial stain, and as…

CAS: 78338-22-4 MDL No: MFCD00081194 Solid Molecular Formula: C₁₄H₁₃N₃O₂S MW: 287.34

A Universal EM Negative Stain used for viruses. In tissue samples it stabilizes nucleic acids and cell membranes. These solutions are more stable than uranyl acetate and they react primarily with negatively charged groups in the absence of phosphate ions. Grade: Reagent Grade, A.C.S. …

CAS: 1390-65-4 EC No: 215-724-4 MDL No: MFCD00167028 RTECS: FH8891000 Powder

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

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

Bromocresol purple binds quantitatively with human serum albumin forming a stable complex with absorbance maximum at 600 nm. The intensity of the color produced is directly proportional to the albumin concentration in the sample. Bromocresol Purple is used as a pH indicator (5.2-6.8 : yellow to…

Calcein is used as an indicator for the determination of calcium by titration with EDTA. Suitable for fluorometric determination of calcium. Calcein does not fluoresce in strong alkaline solution, but an intense fluorescence appears in the presence of alkaline earths, especially calcium. The…

Used as a substitute for uranyl acetate in either double-staining techniques and also as a solo stain. Formula: UO₂Mg(CH₃COO)₄ Formula Weight: 530.0 CAS #: 20596-93-4

For ultra fine grain structure, Electron Microscopy Sciences' Uranyl Formate offers amazing advancement in negative staining for microscopy. Contents are radioactive.

CAS: 5486-84-0 EC No: 226-817-4 MDL No: MFCD00074765 Powder Molecular Formula: C₃₄H₃₆Cl₄N₆O₆Zn MW: 831.89

CAS: 298-93-1 EC No: 206-069-5 MDL No: MFCD00011964 RTECS: XF8060000 Crystalline/Powder Molecular Formula: C₁₈H₁₆BrN₅S MW: 414.33 Melting Point: 195° (decomposes)

Evans Blue is a potent inhibitor of L-glutamate uptake into synaptic vesicles via EAAT. Evans Blue also inhibits AMPA and kainate receptor-mediated currents (IC50 values are 220 and 150 nM respectively). The compound is also a P2X-selective purinoceptor antagonist. Evans Blue used in…

Safranine O is a biological stain used in histology, cytology, bacteriology. It is a redox and adsorption indicator.

Coomassie Blue R-250 is a triphenylmethane dye used extensively in SDS-PAGE for the analysis of proteins. Brilliant Blue R has been used for many years for staining proteins on polyacrylamide electrophoresis gels. Improvement of sensitivity and background have been accomplished using Brilliant…

CAS: 517-28-2 EC No: 208-237-3 MDL No: MFCD00078111 RTECS: MH7875000 Powder Molecular Formula: C₁₆H₁₄O₆·xH₂O MW: 302.29 (anhydrous) Melting Point: 200° (decomposes)

Congo red is a secondary diazo dye. It is a High Purity Biological Stain. Congo Red is suitable for staining cytoplasm, erythrocytes and collagen. Useful probe for conformational studies of nucleotide-binding enzymes.

Cresyl violet acetate is a high purity biological stain to used for Nissl staining of spinal cord and brain paraffin sections and to stain mast cell and cartilage granules. Cresyl violet acetate is used for staining neve tissue and nerve cells and fresh turmor tissue for biopsy.

Phenazine ethosulfate is an intermediate which is used to detect nitric oxide reducatase activity in concert with ascorbic acid.

3,3',5,5'-Tetramethylbenzidine is suitable as peroxidase substrate for use in ELISA procedures. The substrate produces a soluble end product that is pale blue in color and can be read spectrophotometrically at 370 or 620-650 nm. The TMB reaction may be stopped with 2 M H2SO4 (resulting in a…

Bromocresol Green is a dye of the triphenylmethane family (triarylmethane dyes). It binds quantitatively with human albumin forming an intense blue-green complex with an absorbance maximum at 628 nm. Bromocresol Green is useful in a variety of colorimetric detection technologies. It is used as a…

(3',3",5 '5"-Tetrabromophenol-sulfonthalein) Formula: C₁₉H₁₀O₅SBr₄   Formula Weight: 669.97   CAS #: 115-39-9

CAS: 1400-62-0 EC No: 215-750-6 MDL No: MFCD00062310 Powder

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