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Stains, Fluorescent Dyes & Histology Reagents

Azobenzene, 99%+

Available on request

Order Azobenzene, 99%+ (CAS 103-33-3) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Purity ≥98%.

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Azobenzene, 99%+ chemical structure
CAS number103-33-3
FormulaC12H10N2
Molar mass182.22 g/mol
Physical formCrystalline
HS code29270090
UN numberUN 3077
Purity≥98%
InChIKeyDMLAVOWQYNRWNQ-UHFFFAOYSA-N
IUPAC namediphenyldiazene

About Azobenzene, 99%+

Researchers and plant chemists source Azobenzene, 99%+ from Zemixal for routine and specialised work. Key data (≥98%): CAS 103-33-3, formula C12H10N2 and molar mass 182.22 g/mol. Typical appearance is light yellow to yellow to orange powder or crystals.

Use cases we see most often

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories
  • Coordination chemistry

Safe handling

Literature values: melting point 65-68 °C and density 1.09 g/mL at 25 °C. It carries the GHS signal word Danger (H302+H332, H341, H350 and H373), so wear gloves and eye protection and work with good ventilation. For transport it ships as UN UN 3077.

Available as 5 g, 25 g, 100 g and 1 kg. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories
  • Coordination chemistry

Applications

Specifications and identifiers

Specifications of Azobenzene, 99%+
Product nameAzobenzene, 99%+
Catalogue numberZX-000477
CAS number103-33-3
IUPAC namediphenyldiazene
Molecular formulaC12H10N2
Molar mass182.22 g/mol
Exact mass182.0844
Purity / assay≥98%
Physical formCrystalline
AppearanceLight yellow to yellow to orange powder or crystals
Melting point65-68 °C
Density1.09 g/mL at 25 °C
XLogP33.8
H-bond donors / acceptors0 / 2
Topological polar surface area24.7 Ų
HS code29270090
UN numberUN 3077
InChIKeyDMLAVOWQYNRWNQ-UHFFFAOYSA-N
SMILESC1=CC=C(C=C1)N=NC2=CC=CC=C2
PubChem CID2272
Synonyms1,2-Diphenyldiazene, (E)-1,2-Diphenyldiazene, Azobenzol, Diazene, diphenyl-, Diphenyldiimide, Azobenzide, Azobisbenzene, (E)-Diphenyldiazene, Diazobenzene, Benzeneazobenzene, (Z)-Azobenzene, Azodibenzene

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Danger

  • H302+H332Harmful if swallowed or if inhaled
  • H341Suspected of causing genetic defects
  • H350May cause cancer
  • H373May causes damage to organs through prolonged or repeated exposure
  • H410Very toxic to aquatic life with long lasting effects

Precautionary statements P201, P273, P281, P308 + P313, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Azobenzene, 99%+
5 gQuoted on request
25 gQuoted on request
100 gQuoted on request
1 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Azobenzene, 99%+

Which CAS number identifies Azobenzene, 99%+?
Azobenzene, 99%+ is registered under CAS 103-33-3. You may also see it listed as 1,2-Diphenyldiazene, (E)-1,2-Diphenyldiazene, Azobenzol. Our catalogue number for this item is ZX-000477.
What are the formula and molar mass of Azobenzene, 99%+?
For Azobenzene, 99%+, its formula is C12H10N2 and its molar mass is 182.22 g/mol. The systematic (IUPAC) name is diphenyldiazene. InChIKey DMLAVOWQYNRWNQ-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Azobenzene, 99%+?
This listing is ≥98% purity. Standard packs are 5 g, 25 g, 100 g, 1 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Azobenzene, 99%+?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Azobenzene, 99%+ to my country?
Yes. Because Azobenzene, 99%+ is classed as hazardous (UN 3077), it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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