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VAQORACHEMICALS

Azobenzene, 99%+

Synonyms: 1,2-Diphenyldiazene · (E)-1,2-Diphenyldiazene · Azobenzol · Diazene, diphenyl-

CAS No.103-33-3
FormulaC12H10N2
Mol. weight182.22
Catalogue No.VQ-000477
Purity≥98%
HSN29270090

Azobenzene (CAS 103-33-3) – biological stain, ≥98%. C12H10N2, MW 182.22. Get a quote from Vaqora Chemicals, COA included, shipped worldwide.

Pack sizesPrice on quotation · bulk available
5 g
25 g
100 g
1 kg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Azobenzene, 99%+

Azobenzene (CAS 103-33-3) is a biological stain offered by Vaqora Chemicals at a purity of ≥98%. With the molecular formula C12H10N2, it has a molar mass of 182.22 g/mol. Systematically, it is named diphenyldiazene. Common synonyms include 1,2-Diphenyldiazene and (E)-1,2-Diphenyldiazene.

It is supplied as light yellow to yellow to orange powder or crystals. Reported physical data include a melting point of 65-68 °C and a density of 1.09 g/mL at 25 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include histology and cytology staining, microscopy, clinical laboratories and coordination chemistry. Typical end-use sectors are academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

We offer Azobenzene in 5 g, 25 g, 100 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Specifications & identifiers

Chemical identifiers
Product nameAzobenzene, 99%+
Catalogue No.VQ-000477
CAS Number103-33-3
IUPAC namediphenyldiazene
Molecular formulaC12H10N2
Molecular weight182.22 g/mol
Exact mass182.0844
Purity / assay≥98%
HSN code29270090
InChIKeyDMLAVOWQYNRWNQ-UHFFFAOYSA-N
SMILESC1=CC=C(C=C1)N=NC2=CC=CC=C2
PubChem CID2272
Physical properties
Physical formCrystalline
AppearanceLight yellow to yellow to orange powder or crystals
Melting point65-68 °C
Density1.09 g/mL at 25 °C
LogP (XLogP3)3.8
H-bond donors / acceptors0 / 2
TPSA24.7 Ų
UN numberUN 3077
Synonyms1,2-Diphenyldiazene, (E)-1,2-Diphenyldiazene, Azobenzol, Diazene, diphenyl-, Diphenyldiimide, Azobenzide, Azobisbenzene, (E)-Diphenyldiazene, Diazobenzene, Benzeneazobenzene, (Z)-Azobenzene, Azodibenzene

Safety & hazard information (GHS)

GHS07 Harmful / irritant
Harmful / irritant
GHS08 Health hazard
Health hazard
GHS09 Environmental hazard
Environmental hazard

Signal word: Danger

Hazard statements

  • 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 is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Frequently asked questions

What is the CAS number of Azobenzene, 99%+?

The CAS Registry Number of Azobenzene, 99%+ is 103-33-3. It is also known as 1,2-Diphenyldiazene, (E)-1,2-Diphenyldiazene, Azobenzol.

What is the molecular formula and molecular weight of Azobenzene, 99%+?

Azobenzene, 99%+ has the molecular formula C12H10N2 and a molecular weight of 182.22 g/mol. Its IUPAC name is diphenyldiazene.

Which grade and pack sizes of Azobenzene, 99%+ can I order?

We supply Azobenzene, 99%+ in (≥98%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Azobenzene, 99%+?

Yes. Every lot of Azobenzene, 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Azobenzene, 99%+ be shipped internationally?

Yes. Azobenzene, 99%+ is classified as hazardous (UN 3077), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

Enquire about Azobenzene, 99%+

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
How ordering works

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