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N-Methylbenzene-1,2-diamine

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N-Methylbenzene-1,2-diamine Basic information

Product Name:
N-Methylbenzene-1,2-diamine
Synonyms:
  • 2-(methylamino)aniline
  • 2-amino-n-methylaniline
  • n-methyl-2-benzenediamine
  • n-methyl-o-phenylenediamin
  • N-methylbenzene-1,2-diamine
  • N-METHYL-1,2-PHENYLENEDIAMINE / N-METHYL-O-PHENYLENEDIAMINE
  • N-1-methyl-1,2-benzenediamine.hcl
  • (2-aminophenyl)-methyl-amine
CAS:
4760-34-3
MF:
C7H10N2
MW:
122.17
EINECS:
225-297-6
Product Categories:
  • Nitrogen Compounds
  • Organic Building Blocks
  • Miscellaneous
  • (intermediate of telmisartan)
  • Polyamines
Mol File:
4760-34-3.mol
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N-Methylbenzene-1,2-diamine Chemical Properties

Melting point:
22 °C (lit.)
Boiling point:
123-124 °C/10 mmHg (lit.)
Density 
1.075 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.612(lit.)
Flash point:
>230 °F
storage temp. 
under inert gas (nitrogen or Argon) at 2–8 °C
pka
6.17±0.10(Predicted)
form 
Liquid
color 
Clear yellow to red to dark brown
InChIKey
RPKCLSMBVQLWIN-UHFFFAOYSA-N
CAS DataBase Reference
4760-34-3(CAS DataBase Reference)
EPA Substance Registry System
1,2-Benzenediamine, N-methyl- (4760-34-3)
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Safety Information

Hazard Codes 
Xn,Xi
Risk Statements 
20/21/22-36/38-36/37/38
Safety Statements 
26-36
WGK Germany 
3
RTECS 
ST2770000
HS Code 
29215900

MSDS

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N-Methylbenzene-1,2-diamine Usage And Synthesis

Uses

N-Methyl-1,2-phenylenediamine may be used in the following studies:

  • One-pot synthesis of 1-methyl-2(hetero)arylbenzimidazoles.
  • Preparation of 1-methyl-1H-benzimidazole-2(3H)-thione.
  • Total synthesis of the angiotensin II receptor antagonist, telmisartan.
  • Preparation of benzimidazoles from ketene dithioacetals.

Synthesis Reference(s)

Synthetic Communications, 19, p. 1381, 1989 DOI: 10.1080/00397918908054547

General Description

N-Methyl-1,2-phenylenediamine is an ortho-diamine. In situ generated diazonium cations of N-methyl-1,2-phenylenediamine were used for the electrochemical modification of glassy carbon electrode.

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