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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


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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