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Merck
CN

89580

o-Tolidine

for spectrophotometric det. of Au, Ce, Cl, free halogens, Mn, ≥98.0%

Synonym(s):

3,3′-Dimethylbenzidine, 4,4′-Bianisidine

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About This Item

Linear Formula:
[-C6H3(CH3)-4-NH2]2
CAS Number:
119-93-7
Molecular Weight:
212.29
EC Number:
204-358-0
UNSPSC Code:
12161500
PubChem Substance ID:
24889236
Beilstein/REAXYS Number:
2210640
MDL number:
MFCD00014773

Key Documents

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InChI key

NUIURNJTPRWVAP-UHFFFAOYSA-N

InChI

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

SMILES string

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

assay

≥98.0% (NT), ≥98.0%

form

crystalline

quality

for spectrophotometric det. of Au, Ce, Cl, free halogens, Mn

technique(s)

titration: suitable

color

light brown

mp

128-131 °C (lit.)

solubility

2% HCl: 10 mg/mL, clear

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Application

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

Analysis Note

Sensitivity:
1 mL of a 0.1% hydrochloric acid solution gives with 0.0025 mg active chlorine a visible yellow coloration.

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

212.0 °F - closed cup

flash_point_c

100 °C - closed cup

ppe

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

Regulatory Information

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S Torres-Cartas et al.
European journal of medicinal chemistry, 42(11-12), 1396-1402 (2007-05-08)
Mutagenicity is a toxicity endpoint associated with the chronic exposure to chemicals. Aromatic amines have considerable industrial and environmental importance due to their widespread use in industry and their mutagenic capacity. Biopartitioning micellar chromatography (BMC), a mode of micellar liquid

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