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89610

Sigma-Aldrich

o-Toluidine

purum p.a., ≥99.5% (GC)

Synonym(s):
2-Aminotoluene, 2-Methylaniline
Linear Formula:
CH3C6H4NH2
CAS Number:
Molecular Weight:
107.15
Beilstein:
741981
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

vapor density

3.7 (vs air)

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

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.)

cation traces

Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤20 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤1 mg/kg

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 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.

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.

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

Certificate of Analysis

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Certificate of Origin

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