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Merck
CN

380369

o-Tolidine dihydrochloride

97%

Synonym(s):

3,3′-Dimethylbenzidine dihydrochloride, 4,4′-Bianisidine dihydrochloride, 4,4′-Diamino-3,3′-dimethylbiphenyl dihydrochloride

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About This Item

Linear Formula:
[-C6H3(CH3)-4-NH2]2 · 2HCl
CAS Number:
612-82-8
Molecular Weight:
285.21
EC Number:
210-322-5
UNSPSC Code:
12352100
PubChem Substance ID:
24863736
Beilstein/REAXYS Number:
3713238
MDL number:
MFCD00012960

Key Documents

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InChI key

LUKPNZHXJRJBAN-UHFFFAOYSA-N

InChI

1S/C14H16N2.2ClH/c1-9-7-11(3-5-13(9)15)12-4-6-14(16)10(2)8-12;;/h3-8H,15-16H2,1-2H3;2*1H

SMILES string

Cl.Cl.Cc1cc(ccc1N)-c2ccc(N)c(C)c2

assay

97%

Application

Sensitive colorimetric reagent for gold and for free chlorine in water.

Disclaimer

May be carcinogenic.

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Carc. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
1372939
15019BJ
07014KH
06914KH
S43423

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Shinpei Kawarai et al.
The Journal of veterinary medical science, 72(2), 131-140 (2009-11-27)
It is essential to develop a technique to culture purified skin-derived mast cells (SMCs) to facilitate immunological research on allergic diseases in dogs. This study was performed to develop an efficient culture system for canine SMCs and to characterize the
V V Sentchouk et al.
Biochemistry. Biokhimiia, 69(2), 201-207 (2004-03-06)
Human thyroid peroxidase (hTPO) catalyzes a one-electron oxidation of benzidine derivatives by hydrogen peroxide through classical Chance mechanism. The complete reduction of peroxidase oxidation products by ascorbic acid with the regeneration of primary aminobiphenyls was observed only in the case
3,3'-Dimethylbenzidine.
Report on carcinogens : carcinogen profiles, 11, III104-III105 (2004-01-01)
Dyes metabolized to 3,3'-dimethylbenzidine (3,3'-dimethylbenzidine dye class).
Report on carcinogens : carcinogen profiles, 12, 170-171 (2011-08-20)
A K Cook et al.
American journal of veterinary research, 53(10), 1749-1751 (1992-10-01)
To evaluate the effect of diet on results obtained by use of 2 commercial test kits for detection of occult blood in feces, 5 dogs were fed 7 diets in randomized sequence. Dry and canned diets with various principal ingredients
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