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8.08312

Sigma-Aldrich

o-Toluidine

for synthesis

Synonym(s):

o-Toluidine, 2-Aminotoluene, 2-Methylaniline

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About This Item

CAS Number:
95-53-4
Molecular Weight:
107.15
MDL number:
MFCD00007730
UNSPSC Code:
12352116
EC Index Number:
202-429-0
NACRES:
NA.22
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vapor pressure

0.18 hPa ( 20 °C)

Quality Level

200

form

liquid

autoignition temp.

480 °C

potency

3250 mg/kg LD50, skin (Rabbit)

expl. lim.

1.5-7.5 % (v/v)

pH

7.4 (20 °C in H2O, Aqueous solution)

bp

200 °C/1013 hPa

mp

<-15 °C

transition temp

flash point 85 °C

solubility

15 g/L

density

0.99 g/cm3 at 20 °C

storage temp.

2-30°C

SMILES string

Nc1c(cccc1)C

InChI

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

InChI key

RNVCVTLRINQCPJ-UHFFFAOYSA-N

General description

for synthesis

Application

o-Toluidine for synthesis. CAS 95-53-4, EC Number 202-429-0, chemical formula 2-(CH₃)C₆H₄NH₂.

Analysis Note

Assay (GC, area%)≥ 99.0 % (a/a)Density (d 20 °C/ 4 °C)0.998 - 1.000Identity (IR)passes test

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

Certificates of Analysis (COA)

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Questions

  1. Is this use for water test for free chlorination?

    1 answer

    1. This product, o-Toluidine, is typically used for the colorimetric determination of glucose in biological material and as a biological stain for certain tissues and other materials. For the determination of Chlorine in water, o-Tolidine is commonly used. These are separate and different compounds.

      See the link below to review the o-Tolidine product options:
      https://www.sigmaaldrich.com/search/119-93-7?focus=products&page=1&perpage=30&sort=relevance&term=119-93-7&type=cas_number

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