Chromogenic Substrate

Chromogenic Substrate
DTNB Ellman's Reagent

5,5'-Dithio-bis ( 2-nitrobenzoic acid )

CAS# [ 69-78-3 ]
f.w.: 396.4 daltons
Chromogenic Substrate
TMB ( Free base )

3,3',5,5'-Tetramethylbenzidene

CAS# [ 54827-17-7 ]
f.w.: 240.4 daltons
Chromogenic Substrate
TMB dihydrochloride

3,3',5,5'-Tetramethylbenzidene dihydrochloride

CAS# [ 64285-73-0 ]
f.w.: 349.3 daltons
Chromogenic Substrate
X-GAL

5-Bromo-4-chloro-3-indolyl-beta-D-galactoside, 99+%

CAS# [ 7240-90-6 ]
f.w.:408.6 daltons
Chromogenic Substrate
X-GLUC chx salt

5-Bromo-4-chloro-3-indolyl-beta-D-gluuronide cyclohexylammonium salt

f.w.521.8