4,4'-Dinitro Azobenzene

About 4,4'-Dinitro Azobenzene

4,4'-Dinitro Azobenzene is an API impurity reference standard carrying the CAS registry number 3646-57-9. Formula C12H8N4O4, molecular weight 272.22 g/mol. Its systematic (IUPAC) name is bis(4-nitrophenyl)diazene. Common synonyms include p,p'-Dinitroazobenzene and Diazene, bis(4-nitrophenyl)-.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

This the parent drug substance impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 4,4'-Dinitro Azobenzene is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Specifications & identifiers

Chemical identifiers
Product name	4,4'-Dinitro Azobenzene
Catalogue No.	VQ-040777
CAS Number	3646-57-9
IUPAC name	bis(4-nitrophenyl)diazene
Molecular formula	C₁₂H₈N₄O₄
Molecular weight	272.22 g/mol
Exact mass	272.0546
Grade	Reference Standard
HSN code	38229090
InChIKey	BYLJUTWUGSHKJB-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1N=NC2=CC=C(C=C2)[N+](=O)[O-])[N+](=O)[O-]
PubChem CID	137999

Physical properties
Physical form	Solid
LogP (XLogP3)	3.4
H-bond donors / acceptors	0 / 6
TPSA	116 Å²
Synonyms	p,p'-Dinitroazobenzene, Diazene, bis(4-nitrophenyl)-, Azobenzene, 4,4'-dinitro-, Azobenzene,4'-dinitro-, (E)-1,2-Bis(4-nitrophenyl)diazene #, Diazene, 1,2-bis(4-nitrophenyl)-, (1E)-

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 4,4'-Dinitro Azobenzene?

The CAS Registry Number of 4,4'-Dinitro Azobenzene is 3646-57-9. It is also known as p,p'-Dinitroazobenzene, Diazene, bis(4-nitrophenyl)-, Azobenzene, 4,4'-dinitro-.

What is the molecular formula and molecular weight of 4,4'-Dinitro Azobenzene?

4,4'-Dinitro Azobenzene has the molecular formula C12H8N4O4 and a molecular weight of 272.22 g/mol. Its IUPAC name is bis(4-nitrophenyl)diazene.

Which grade and pack sizes of 4,4'-Dinitro Azobenzene can I order?

We supply 4,4'-Dinitro Azobenzene in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4,4'-Dinitro Azobenzene?

Yes. Every lot of 4,4'-Dinitro Azobenzene 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 4,4'-Dinitro Azobenzene be shipped internationally?

Yes. We export 4,4'-Dinitro Azobenzene worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.