4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydra… 750530-77-9

Name: 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid
Brand: Vaqora Chemicals
SKU: VQ-042369

About 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid

Vaqora Chemicals supplies 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid, an impurity of Tartrazine registered under CAS number 750530-77-9. The compound has the formula C22H16N4O12S3, corresponding to a molecular weight of 624.6 g/mol. The IUPAC name is 3-oxo-2-(4-sulfophenyl)-4-[[4-sulfo-2-(4-sulfophenyl)phenyl]diazenyl]-1H-pyrazole-5-carboxylic acid.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Tartrazine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid 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

Related to Tartrazine

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

Tartrazine impurities

Specifications & identifiers

Chemical identifiers
Product name	4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid
Catalogue No.	VQ-042369
CAS Number	750530-77-9
IUPAC name	3-oxo-2-(4-sulfophenyl)-4-[[4-sulfo-2-(4-sulfophenyl)phenyl]diazenyl]-1H-pyrazole-5-carboxylic acid
Molecular formula	C₂₂H₁₆N₄O₁₂S₃
Molecular weight	624.6 g/mol
Exact mass	623.9927
Grade	Reference Standard
HSN code	38229090
InChIKey	QCWMHQBWZVKDLF-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1C2=C(C=CC(=C2)S(=O)(=O)O)N=NC3=C(NN(C3=O)C4=CC=C(C=C4)S(=O)(=O)O)C(=O)O)S(=O)(=O)O
PubChem CID	135565970

Physical properties
Physical form	Solid
LogP (XLogP3)	1.1
H-bond donors / acceptors	5 / 15
TPSA	283 Å²

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-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid?

The CAS Registry Number of 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid is 750530-77-9.

What is the molecular formula and molecular weight of 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid?

4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid has the molecular formula C22H16N4O12S3 and a molecular weight of 624.6 g/mol. Its IUPAC name is 3-oxo-2-(4-sulfophenyl)-4-[[4-sulfo-2-(4-sulfophenyl)phenyl]diazenyl]-1H-pyrazole-5-carboxylic acid.

What is 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid used for?

4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid is supplied as a characterised reference material related to Tartrazine. 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 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid can I order?

We supply 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic 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 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid?

Yes. Every lot of 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic 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 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid be shipped internationally?

Yes. We export 4-(2-(4',5-Disulfo-[1,1'-biphenyl]-2-yl)hydrazineylidene)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic Acid worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.