Skip to Content
MilliporeSigma
All Photos(3)

Key Documents

87750

Sigma-Aldrich

3,3′,5,5′-Tetramethylbenzidine dihydrochloride hydrate

≥98.0% (calc. on dry substance, AT), chromogenic, powder

Synonym(s):

TMB dihydrochloride

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
[-C6H2(CH3)2-4-NH2]2·2HCl·xH2O
CAS Number:
Molecular Weight:
313.27 (anhydrous basis)
MDL number:
UNSPSC Code:
12352204
PubChem Substance ID:
NACRES:
NA.83

product name

3,3′,5,5′-Tetramethylbenzidine dihydrochloride hydrate, ≥98.0% (calc. on dry substance, AT)

Quality Level

assay

≥98.0% (calc. on dry substance, AT)

form

powder

impurities

≤6% water

solubility

acetic acid: water (1:2): soluble 0.1 g/5mL (hot)

storage temp.

2-8°C

SMILES string

O.Cl.Cl.Cc1cc(cc(C)c1N)-c2cc(C)c(N)c(C)c2

InChI

1S/C16H20N2.2ClH.H2O/c1-9-5-13(6-10(2)15(9)17)14-7-11(3)16(18)12(4)8-14;;;/h5-8H,17-18H2,1-4H3;2*1H;1H2

InChI key

KVCWTKDFVVSVSJ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Application

Noncarcinogenic substitute for benzidine.

pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 4 - Carc. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service