8.20118

trans-Azobenzene

for synthesis

• Synonym(s): trans-Azobenzene, Diazobenzene, Diphenyl diimide, Diphenyldiazene
• Linear Formula: C₆H₅N=NC₆H₅
• CAS Number: 103-33-3
• Molecular Weight: 182.22
• MDL number: MFCD00003022
• UNSPSC Code: 12352124
• EC Index Number: 203-102-5
• NACRES: NA.22

Properties

• vapor pressure: 0.00048 hPa ( 25 °C)
• Quality Level: 200
• 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

Description

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

Safety Information

• Pictograms: GHS07,GHS08,GHS09
• Signal Word: Danger
• Hazard Statements: H302 + H332 - H341 - H350 - H373 - H410
• Precautionary Statements: P202 - P260 - P273 - P301 + P312 - P304 + P340 + P312 - P308 + P313
• 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