Description
Application 3,3′,5,5′-Tetramethylbenzidine （TMB） is a noncarcinogenic substitute （Ames test negative） for benzidine1 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 yellow color）, and read at 450 nm. A sensitive and specific reagent for the detection of blood,2 assay of hemoglobin,3,4,5 assay of peroxidases.6,7,8
Packaging 1, 5, 25 g in glass btl
  100 mg in glass btl

Properties
assay ≥99%
mp 168-171 °C（lit.）

Safety
Personal Protective Equipment dust mask type N95 （US）, Eyeshields, Faceshields, Gloves
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36
WGK Germany 3
RTECS DV2300000

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