WST-1

WST-1 is a water-soluble and cell-permeable tetrazolium dye. Upon NADH-dependent enzymatic cleavage by cellular mitochondrial dehydrogenases, formazan is released, which can be quantified by colorimetric detection at 450 nm as a measure of cell viability.Formal Name: 5-(2,4-disulfophenyl)-2-(4-iodophenyl)-3-(4-nitrophenyl)-2H-tetrazolium, inner salt, monosodium salt. CAS Number: 150849-52-8. Synonyms: Water-Soluble Tetrazolium 1. Molecular Formula: C19H11IN5O8S2 . Na. Formula Weight: 651.3. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 5 mg/ml, DMSO: 10 mg/ml, PBS (pH 7.2): 10 mg/ml. SMILES: [O-]S(C(C=C1)=CC(S([O-])(=O)=O)=C1C2=NN(C3=CC=C(I)C=C3)[N+](C4=CC=C([N+]([O-])=O)C=C4)=N2)(=O)=O.[Na+]. InChi Code: InChI=1S/C19H12IN5O8S2.Na/c20-12-1-3-13(4-2-12)23-21-19(22-24(23)14-5-7-15(8-6-14)25(26)27)17-10-9-16(34(28,29)30)11-18(17)35(31,32)33,/h1-11H,(H-,28,29,30,31,32,33),/q,+1/p-1. InChi Key: JUJBNYBVVQSIOU-UHFFFAOYSA-M.