3,3,5,5-Tetramethyl benzidine dihydrochloride

CAS No.: 64285-73-0

C16H20N2•2HC1=313.27

Grade: BR

Content: ≥ 98.0%

Melting point: ≥ 300 ℃

Water dissolution test: acceptable

Physicochemical properties: white or pink crystal powder. Water solubility test: 100mg / 10ml water

Purpose: biochemical research. 3,3', 5,5'- tetramethylbenzidine (TMB) is the substrate of catalase and is used for enzyme-immunoelisa reaction. The substrate can produce a soluble light yellow terminal product, which can be read by spectrophotometry at 370 or 620-650 nm The TMB reaction can be terminated with 2 m H2SO4 (the result is yellow) and can be read at 450 nm. Non carcinogenic alternatives to diaminobiphenyl.

Storage: 2 ~ 8 ℃, away from light and metal