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Safety Information

89610

Sigma-Aldrich

o-Toluidine

purum p.a., ≥99.5% (GC)

Synonym(s):

2-Aminotoluene, 2-Methylaniline

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¥525.12
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¥1,422.26

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100 ML
¥525.12
500 ML
¥1,422.26

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:
329769755
NACRES:
NA.22

¥525.12

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vapor density

3.7 (vs air)

Quality Level

100

vapor pressure

0.26 mmHg ( 25 °C)

grade

purum p.a.

Assay

≥99.5% (GC)

form

liquid

autoignition temp.

899 °F

impurities

≤0.1% water
≤0.5% m- and p-toluidine (GC)

ign. residue

≤0.01% (as SO4)

refractive index

n20/D 1.572 (lit.)
n20/D 1.572

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Show Differences

1 of 4

This Item
466190T119945979
邻甲基苯胺 purum p.a., ≥99.5% (GC)

89610

邻甲基苯胺

邻甲基苯胺 98%

466190

邻甲基苯胺

邻甲苯胺 溶液 0.6 M in glacial acetic acid, contains thiourea as stabilizer

T1199

邻甲苯胺 溶液

邻甲基苯胺 analytical standard

45979

邻甲基苯胺

assay

≥99.5% (GC)

assay

98%

assay

-

assay

-

solubility

H2O: slightly soluble

solubility

H2O: slightly soluble

solubility

-

solubility

H2O: slightly soluble

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

form

liquid

form

liquid

form

-

form

-

mp

−28 °C (lit.)

mp

−28 °C (lit.)

mp

-

mp

−28 °C (lit.)

density

1.008 g/mL at 25 °C (lit.)

density

1.008 g/mL at 25 °C (lit.)

density

-

density

1.008 g/mL at 25 °C (lit.)

General description

o-Toluidine belongs to the class of monocyclic aromatic amines, which are of research and industrial importance. It can be used as a derivatization agent for the resolution of analytes by the formation of chromophores, which can be visualized by UV radiation or fluorescence.[1][2]

Application

o-Toluidine may be used as a TLC Visualization (Staining) Reagent for the detection of reducing sugars in protein hydrolysates by using high-performance thin-layer chromatography (HPTLC) coupled with UV diffuse reflectance scanning densitometry.[1]

Caution

may discolor on storage

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

Regulatory Information

危险化学品
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    Certificates of Analysis (COA)

    Lot/Batch Number
    BCCH7903
    BCCF8771
    BCBT8289

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    Determination of aromatic amines in textile after bromination, by gas chromatography coupled with electron capture detection
    Dados AE, et al.
    Chromatographia, 59(5-6), 335-341 (2004)
    An o-toluidine method for detection of carbohydrates in protein hydrolysates
    Morcol T and Velander WH
    Analytical Biochemistry, 195(1), 153-159 (1991)
    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
    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
    Qin Yang et al.
    Talanta, 81(1-2), 664-672 (2010-03-02)
    The electrochemical synthesis and characterization of a copolymer, poly(o-toluidine-co-o-aminophenol), were conducted using in situ piezoelectric FTIR spectroelectrochemistry. The monomer feed ratio strongly affects the copolymerization rate and the properties of the copolymer during the electrosynthesis in 0.5M H(2)SO(4) aqueous solution.
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