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Key Documents

8.20118

Sigma-Aldrich

trans-Azobenzene

for synthesis

Synonym(s):

trans-Azobenzene, Diazobenzene, Diphenyl diimide, Diphenyldiazene

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About This Item

Linear Formula:
C6H5N=NC6H5
CAS Number:
Molecular Weight:
182.22
MDL number:
UNSPSC Code:
12352124
EC Index Number:
203-102-5
NACRES:
NA.22

vapor pressure

0.00048 hPa ( 25 °C)

Quality Level

Assay

≥96.0% (GC)

potency

1000 mg/kg LD50, oral (Rat)

bp

291-294 °C/1013 hPa

mp

66-69 °C

transition temp

flash point 100 °C

density

1.203 g/cm3

storage temp.

2-30°C

InChI

1S/C12H10N2/c1-3-7-11(8-4-1)13-14-12-9-5-2-6-10-12/h1-10H

InChI key

DMLAVOWQYNRWNQ-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 96.0 % (a/a)
Melting range (lower value): ≥ 65 °C
Melting range (upper value): ≤ 68 °C
Identity (IR): passes test

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Muta. 2 - STOT RE 2

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

212.0 °F - closed cup

Flash Point(C)

100.0 °C - closed cup


Certificates of Analysis (COA)

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