Dyes

Catalog No. Product Name Information
S1917 Crystal Violet Crystal violet is a triarylmethane dye.
S2384 Hematoxylin Hematoxylin (Hydroxybrazilin) is a compound that forms strongly colored complexes with certain metal ions, notably Fe(III) and Al(III) salts and a kind of stain in histology.
S3130 Biotin (Vitamin B7) Biotin is a water-soluble B-vitamin and is necessary for cell growth, the production of fatty acids, and the metabolism of fats and amino acids.
S4107 Clofazimine Clofazimine is a rhimophenazine dye, originally developed for the treatment of tuberculosis, it has both antimicrobial and antiinflammatory activity, postulated mechanisms of action include intercalation of clofazimine with bacterial DNA and increasing levels of cellular phospholipase A2.
S7764 WST-8 WST-8 is a water-soluble tetrazolium salt used for assessing cell metabolic activity that produces corresponding formazan dye that absorbs at 460 nm. WST-8 is typically used as a cell viability indicator in cell proliferation assays.
S7777 Coelenterazine Coelenterazine is a luminescent enzyme substrate, used for monitoring reporter genes in BRET, ELISA and HTS techniques.
S7763 D-Luciferin D-Luciferin is a popular bioluminescent substrate of luciferase in the presence of ATP, used in luciferase-based bioluminescence imaging and cell-based high-throughput screening applications.
S4535 Methylene Blue Methylene Blue is used as a dye in chromoendoscopy. It Inhibits tau filament formation with IC50 of 1.9μM. Also it inhibits soluble guanylyl cyclase.
S3700 DHBP dibromide DHBP, a viologen for electrochromic memory display agent, inhibits the calcium release induced by 2 mM caffeine and 2 μg/ml polylysine with an IC50 value of 5 μg/ml and 4 μg/ml respectively.
S5110 Safflower Yellow Safflor Yellow (SY), the main active constituent of the traditional Chinese medicine Safflower, is known as a neuroprotective agent that indirectly attenuates neuroinflammation.
S4780 7-Methoxy-4-methylcoumarin 7-Methoxy-4-methylcoumarin is a coumarin derivative and fluorescent label. 7-Methoxy-4-methylcoumarin has an antimicrobial activitiy against both gram positive and gram negative bacterial stains. 4-Methylherniarin displays good activity against B. subtilis and S.sonnei with IC50 of 11.76 μg/ml and 13.47 μg/ml, respectively.
S5283 TMB-PS TMB-PS is a chromogenic reagent for the detection of hydrogen peroxide e.g. in the enzymatic analysis of body fluids.
S5395 Phenolphthalein Phenolphthalein is an acid-base pH indicator.
S5488 Fluorescein Fluorescein is a manufactured organic compound and dye.
S5641 Rhodamine B Rhodamine B is used as a tracer dye in water to determine the rate and direction of flow and transport. It is a staining fluorescent dye used in fluorescence microscopy, flow cytometry, fluorescence correlation spectroscopy and ELISA in biotechnology fields.
S5656 Diphenylpyraline hydrochloride Diphenylpyraline hydrochloride is the hydrochloride salt form of diphenylpyraline, which is an antihistamine used in the treatment of allergic rhinitis, hay fever, and allergic skin disorders.
S6065 Congo Red Congo Red is an indicator dye that is blue-violet at pH 3.0 and red at pH 5.0. It is an acid dye used in testing for hydrochloric acid in gastric contents but has carcinogenic properties.
S6101 Solvent Blue 35 Solvent Blue 35 is a member of the Sudan family of hydrophobic fat-staining dyes, predominantly used for staining triglycerides in animal tissues (frozen sections).
S6165 Erythrosine B Erythrosine B is cherry or melon-pink synthetic, primarily used for food coloring.
S6191 Sudan I Sudan I is an azo dye. It causes tumors in the liver or urinary bladder in rats, mice, and rabbits and may be a potential carcinogen for humans.
S6580 D-Luciferin Potassium Salt D-Luciferin is a substrate for the enzyme firefly luciferase.
S6718 MKT-077 MKT-077 is a newly synthesized, highly water-soluble rhodacyanine dye that exhibits significant antitumor activity in a variety of model systems.
S6824 Lucigenin Lucigenin is a fluoerscent probe that exhibits a bluish-green fluorescence in the presence of endogenously generated superoxide anion radicals and chloride in cells.
S6825 Thioflavine S Thioflavine S is a fluorogenic compound which becomes fluorescent only after oxidation. Thioflavine S is used as a fluorescent histochemical marker of dense core senile plaques.
S6819 Luminol Luminol is a versatile chemical exhibiting chemiluminescence with a blue glow, when mixed with an appropriate oxidizing agent. Luminol is uesed in forensic investigations to detect trace amounts of blood at crime scenes and in biological researches to detect copper, iron, and cyanides, as well as specific proteins by western blot. Luminol recently displayes promising applications for the treatment of cancer in deep tissues.
S6821 Thiazolyl Blue Thiazolyl Blue (MTT) is a cell-permeable and positively charged colorimetric agent that is widely used to detect reductive metabolism in cells and to measure cell proliferation, cytotoxicity, and apoptosis. Thiazolyl Blue (MTT) is reduced from yellow color to purple formazan in living cells.
S6818 Nile Red Nile Red is an excellent vital fluorescent stain for the detection of intracellular lipid droplets in the presence of a hydrophobic environment. Nile Red is applied for staining intracellular lipids, hydrophobic domains of proteins and lysosomal phospholipid inclusions.
S6820 X-GAL X-GAL is a widely used chromogenic β-galactosidase substrate. β-galactosidase cleaves X-gal and produce an insoluble detectable blue compound. X-Gal is applied in blue-white selection of recombinant bacterial colonies with the lac+ genotype.
S6822 TMB dihydrochloride TMB dihydrochloride is an excellent colorimetric substrate for detection of horseradish peroxidase (HRP) labeled probes and is used in staining procedures in immunohistochemistry and in enzyme-linked immunosorbent assays (ELISA).