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B11400

Sigma-Aldrich

Benzotriazole

ReagentPlus®, 99%

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Synonym(s):
1,2,3-Benzotriazole, 1H-Benzotriazole
Empirical Formula (Hill Notation):
C6H5N3
CAS Number:
95-14-7
Molecular Weight:
119.12
Beilstein:
112133
EC Number:
202-394-1
MDL number:
MFCD00005699
PubChem Substance ID:
57653915
NACRES:
NA.21

vapor density

4.1 (vs air)

Quality Level

200

vapor pressure

0.04 mmHg ( 20 °C)

product line

ReagentPlus®

Assay

99%

form

powder

mp

97-99 °C (lit.)

SMILES string

c1ccc2[nH]nnc2c1

InChI

1S/C6H5N3/c1-2-4-6-5(3-1)7-9-8-6/h1-4H,(H,7,8,9)

InChI key

QRUDEWIWKLJBPS-UHFFFAOYSA-N

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1 of 4

This Item
8.2231576457101338
Benzotriazole ReagentPlus®, 99%

Sigma-Aldrich

B11400

Benzotriazole

1H-Benzotriazole for synthesis

Sigma-Aldrich

8.22315

1H-Benzotriazole

Benzotriazole analytical standard

Supelco

76457

Benzotriazole

Benzothiazole 96%

Sigma-Aldrich

101338

Benzothiazole

form

powder

form

solid

form

-

form

-

mp

97-99 °C (lit.)

mp

99 °C

mp

97-99 °C (lit.)

mp

2 °C (lit.)

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

-

vapor density

4.1 (vs air)

vapor density

-

vapor density

4.1 (vs air)

vapor density

4.66 (vs air)

vapor pressure

0.04 mmHg ( 20 °C)

vapor pressure

0.053 hPa ( 20 °C)

vapor pressure

0.04 mmHg ( 20 °C)

vapor pressure

34 mmHg ( 131 °C)

Application

Benzotriazole can be used as a reactant to synthesize:
  • β-Aminocarbonyl compounds via Mannich reaction of secondary amines and aldehydes in the presence of p-toluenesulfonic acid as a catalyst.
  • Acylbenzotriazoles via thionyl chloride catalyzed reaction with nitrobenzoic acids.
  • 1-(2-Pyridyl)benzotriazole by reacting with 2-bromopyridine in the presence of toluene as a solvent.

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H302 - H319 - H411

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

338.0 °F - closed cup

Flash Point(C)

170 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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