Azobenzene-4,4'-dicarboxylic Acid

About Azobenzene-4,4'-dicarboxylic Acid

Azobenzene-4,4'-dicarboxylic Acid is an impurity of Deferasirox carrying the CAS registry number 586-91-4. With the molecular formula C14H10N2O4, it has a molar mass of 270.24 g/mol. Systematically, it is named 4-[(4-carboxyphenyl)diazenyl]benzoic acid. It is also known as 4,4'-Azobisbenzoic acid or 4,4'-(E)-diazene-1,2-diyldibenzoic acid.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 2 hazard statements. Review the Safety Data Sheet before use.

Pharmaceutical QC and development laboratories use this impurity standard of Deferasirox to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

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

Industries

Related to Deferasirox

View every impurity, metabolite and intermediate we list for Deferasirox.

Deferasirox impurities

Specifications & identifiers

Chemical identifiers
Product name	Azobenzene-4,4'-dicarboxylic Acid
Catalogue No.	VQ-030105
CAS Number	586-91-4
IUPAC name	4-[(4-carboxyphenyl)diazenyl]benzoic acid
Molecular formula	C₁₄H₁₀N₂O₄
Molecular weight	270.24 g/mol
Exact mass	270.0641
Grade	Reference Standard
HSN code	38229090
InChIKey	NWHZQELJCLSKNV-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1C(=O)O)N=NC2=CC=C(C=C2)C(=O)O
PubChem CID	11471

Physical properties
Physical form	Solid
LogP (XLogP3)	2.8
H-bond donors / acceptors	2 / 6
TPSA	99.3 Å²
Synonyms	4,4'-Azobisbenzoic acid, 4,4'-(E)-diazene-1,2-diyldibenzoic acid, 4,4'-(Diazene-1,2-diyl)dibenzoic acid, (E)-4,4'-(Diazene-1,2-diyl)dibenzoic acid, 4,4'-Azodibenzoic Acid, Benzoic acid, 4,4'-azobis-, (E)-Azobenzene-4,4'-dicarboxylic acid, 4,4'-azobenzenedicarboxylic acid, 4,4'-(E)-diazene-1,2-diyldibenzoicacid, 4-Azobenzoate, 4,4'-azinodibenzoic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements: P264, P264 + P265, P280, P302 + P352, P305 + P351 + P338, P321, P332 + P317, P337 + P317, P362 + P364

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

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 Azobenzene-4,4'-dicarboxylic Acid?

The CAS Registry Number of Azobenzene-4,4'-dicarboxylic Acid is 586-91-4. It is also known as 4,4'-Azobisbenzoic acid, 4,4'-(E)-diazene-1,2-diyldibenzoic acid, 4,4'-(Diazene-1,2-diyl)dibenzoic acid.

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

Azobenzene-4,4'-dicarboxylic Acid has the molecular formula C14H10N2O4 and a molecular weight of 270.24 g/mol. Its IUPAC name is 4-[(4-carboxyphenyl)diazenyl]benzoic acid.

What is Azobenzene-4,4'-dicarboxylic Acid used for?

Azobenzene-4,4'-dicarboxylic Acid is supplied as a characterised reference material related to Deferasirox. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

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

We supply Azobenzene-4,4'-dicarboxylic Acid 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 Azobenzene-4,4'-dicarboxylic Acid?

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

Yes. Azobenzene-4,4'-dicarboxylic Acid is classified as hazardous, 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.