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466190

Sigma-Aldrich

o-Toluidine

98%

Synonym(s):

2-Aminotoluene, 2-Methylaniline

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About This Item

Linear Formula:
CH3C6H4NH2
CAS Number:
95-53-4
Molecular Weight:
107.15
Beilstein:
741981
EC Number:
202-429-0
MDL number:
MFCD00007730
UNSPSC Code:
12352100
PubChem Substance ID:
24870332
NACRES:
NA.22

vapor density

3.7 (vs air)

vapor pressure

0.26 mmHg ( 25 °C)

Assay

98%

form

liquid

autoignition temp.

899 °F

refractive index

n20/D 1.572 (lit.)

bp

199-200 °C (lit.)
89-90 °C/11 mmHg (lit.)

mp

−28 °C (lit.)

solubility

H2O: slightly soluble

density

1.008 g/mL at 25 °C (lit.)

SMILES string

Cc1ccccc1N

InChI

1S/C7H9N/c1-6-4-2-3-5-7(6)8/h2-5H,8H2,1H3

InChI key

RNVCVTLRINQCPJ-UHFFFAOYSA-N

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General description

o-Toluidine undergoes chemically oxidative polymerization with aniline in the presence of ammonium persulfate as an oxidant in HCl medium.

Application

o-Toluidine was used as a precursor in the synthesis of poly(o-toluidine) and copper nanoparticle composite material.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Carc. 1B - Eye Irrit. 2

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

185.0 °F - closed cup

Flash Point(C)

85 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

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Oxidative copolymers of aniline with o-toluidine: Their structure and thermal properties.
Huang M-R, et al.
Journal of Applied Polymer Science, 81(8), 1838-1847 (2001)
In situ synthesis of copper nanoparticles and poly (< i> o</i>-toluidine): A metal-polymer composite material.
Mallick K, et al.
Eur. Polymer J., 42(3), 670-675 (2006)
Tania Carreón et al.
Occupational and environmental medicine, 67(5), 348-350 (2009-11-04)
In 1991, the US National Institute for Occupational Safety and Health (NIOSH) reported an increased bladder cancer risk in a cohort of 1749 workers potentially exposed to o-toluidine and aniline at a chemical manufacturing plant. As additional information showed that
Hun-Je Jo et al.
Chemosphere, 70(6), 949-957 (2007-09-26)
In this study, major toxicants in pigment wastewaters (i.e. raw wastewater and effluent) were determined by toxicity identification evaluations (TIEs), and changes in their toxicities due to combined gamma-ray (gamma-ray) and ozone treatments were evaluated. From TIE results using Daphnia
Dirk Lindner et al.
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 20(7), 1524-1536 (2011-05-27)
This multicenter, observational study was conducted in three European countries (Germany, Switzerland, and the United Kingdom) to determine the exposure of adult cigarette smokers and nonsmokers to selected cigarette smoke constituents: 1,3-butadiene, 2-naphthylamine, 4-aminobiphenyl, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), acrolein, benzene, carbon monoxide
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