5-Methyl-1H-benzo[d][1,2,3]triazole

Modify Date: 2025-08-22 15:33:28

5-Methyl-1H-benzo[d][1,2,3]triazole Structure
5-Methyl-1H-benzo[d][1,2,3]triazole structure
 Common Name 5-Methyl-1H-benzo[d][1,2,3]triazole
CAS Number 136-85-6 Molecular Weight 133.151
Density 1.3±0.1 g/cm3 Boiling Point 360.6±11.0 °C at 760 mmHg
Molecular Formula C7H7N3 Melting Point 80-82 °C(lit.)
MSDS Chinese USA Flash Point 181.5±12.2 °C
Symbol GHS07
GHS07		 Signal Word Warning

 Names

Name 5-methyl-1H-benzotriazole
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.3±0.1 g/cm3
Boiling Point 360.6±11.0 °C at 760 mmHg
Melting Point 80-82 °C(lit.)
Molecular Formula C7H7N3
Molecular Weight 133.151
Flash Point 181.5±12.2 °C
Exact Mass 133.063995
PSA 41.57000
LogP 1.80
Vapour Pressure 0.0±0.8 mmHg at 25°C
Index of Refraction 1.680
Storage condition Refrigerator
Water Solubility 6.0 g/L (25 ºC)

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DM1400000
CHEMICAL NAME :
1H-Benzotriazole, 5-methyl-
CAS REGISTRY NUMBER :
136-85-6
BEILSTEIN REFERENCE NO. :
0116658
LAST UPDATED :
199710
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C7-H7-N3
MOLECULAR WEIGHT :
133.17
WISWESSER LINE NOTATION :
T56 BMNNJ G1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1600 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
KODAK* Kodak Company Reports. (343 State St., Rochester, NY 14650) Volume(issue)/page/year: 21MAY1971
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
>1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
KODAK* Kodak Company Reports. (343 State St., Rochester, NY 14650) Volume(issue)/page/year: 21MAY1971 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 5 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X9085 No. of Facilities: 618 (estimated) No. of Industries: 7 No. of Occupations: 12 No. of Employees: 8729 (estimated) No. of Female Employees: 352 (estimated)

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H302-H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Hazard Codes Xn:Harmful;
Risk Phrases R22;R37
Safety Phrases S26-S36-S38
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS DM1400000

 Synthetic Route

 Articles4

More Articles
Benzothiazole, benzotriazole, and their derivates in clothing textiles--a potential source of environmental pollutants and human exposure.

Environ. Sci. Pollut. Res. Int. 22(8) , 5842-9, (2015)

Textiles play an important role in our daily life, and textile production is one of the oldest industries. In the manufacturing chain from natural and/or synthetic fibers to the final clothing product...

Simultaneous determination of benzothiazoles, benzotriazoles and benzosulfonamides by solid phase microextraction-gas chromatography-triple quadrupole mass spectrometry in environmental aqueous matrices and human urine

J. Chromatogr. A. 1338 , 164-73, (2014)

• Benzothiazoles, benzotriazoles and benzosulfonamides determination in aqueous matrices. • New environmental-friendly and high-throughput protocol developed by SPME-GC-QqQMS. • Sample preparation str...

Determination of benzotriazoles and benzothiazoles in human urine by liquid chromatography-tandem mass spectrometry.

Anal. Chem. 85(1) , 441-8, (2013)

Benzotriazole (BTR) and benzothiazole (BTH) derivatives are used in a wide variety of industrial and consumer products and have been reported to occur in the environment. Owing to a lack of analytical...

 Synonyms

Azimidotoluene
5-methyl-1-H-benzotriazole
6-methylbenzotriazole
Retrocure G
Tolyltriazole
5-Methylbenzotriazole
TOLYTRIAZOLE
EINECS 205-265-8
5-Methyl-1H-benzotriazole
Vulkalent TM
m-Aziminotoluene
5-Methyl-1H-benzo[d][1,2,3]triazole
5MBT
T56 BMNNJ G1
6-Tolyltriazole
UNII-O9DI72TU6U
m-Tolylazoimide
MFCD00005702
5-methyl-1,2,3-benzotriazole
2H-1,2,3-Benzotriazole, 5-methyl-
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Chemsrc provides 5-Methyl-1H-benzo[d][1,2,3]triazole(CAS#:136-85-6) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of 5-Methyl-1H-benzo[d][1,2,3]triazole are included as well.>> amp version: 5-Methyl-1H-benzo[d][1,2,3]triazole

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