5-Methyl-1H-benzotriazol - 5-Methyl-1H-benzotriazol

Structural formula
Structural formula of 5-methyl-1H-benzotriazole
General
Name 5-Methyl-1H-benzotriazol
other names
  • 6-Methylbenzotriazol
  • 5-Methyl-1H-1,2,3-benzotriazol
Sum formula C 7 H 7 N 3
Brief description

Powder [1]

External identifiers / databases
CAS number 136-85-6
EC number 205-265-8
ECHA-InfoCard 100.004.787
PubChem 8705
Wikidata Q17493530
characteristics
Molar mass 133.15 g · mol −1
Physical state

fest

Melting point

80–82 °C[1]

boiling point

210–212 °C (16 hPa)[1]

solubility

poorly soluble in water (6 g · l at 25 ° C) [1]

safety instructions
GHS hazard labeling [1]
07 - Warning

Caution

H and P phrases H: 302​‐​315​‐​319​‐​335
P: 261​‐​305+351+338 [1]
Toxicological data

1.600 mg·kg−1 (LD50, Ratte, oral)[2]

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

5-Methyl-1 H -benzotriazole , C 7 H 7 N 3 is a chemical compound from the group of benzotriazoles .

characteristics

The compound is a powder that is difficult to ignite. It is difficult to dissolve in water. [1]

use

5-Methyl-1 H -benzotriazole is contained in antifreeze and is used as a corrosion inhibitor for copper . [2]

Individual evidence

  1. a b c d e f g Entry on 5-methyl-1H-benzotriazole in the GESTIS substance database of the IFA , accessed on February 2, 2019 (JavaScript required)
  2. a b Data sheet 5-Methyl-1H-benzotriazole from Sigma-Aldrich , accessed on February 2, 2019 ( PDF ).