Olsalazine EP Impurity B

Name: Olsalazine EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-027007

About Olsalazine EP Impurity B

Vaqora Chemicals supplies Olsalazine EP Impurity B, a pharmacopeial impurity of Olsalazine registered under CAS number 752188-68-4. Its molecular formula is C14H10N2O6 and its molecular weight is 302.24 g/mol. Systematically, it is named 3-[(3-carboxy-4-hydroxyphenyl)diazenyl]-2-hydroxybenzoic acid. Common synonyms include Olsalazine Sodium - Impurity B and Olsalazine Impurity B.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

This Olsalazine impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across 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

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Olsalazine

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

Olsalazine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Olsalazine EP Impurity B
Catalogue No.	VQ-027007
CAS Number	752188-68-4
IUPAC name	3-[(3-carboxy-4-hydroxyphenyl)diazenyl]-2-hydroxybenzoic acid
Molecular formula	C₁₄H₁₀N₂O₆
Molecular weight	302.24 g/mol
Exact mass	302.0539
Grade	Reference Standard
HSN code	38229090
InChIKey	WWTUQHXVNBGBLR-UHFFFAOYSA-N
SMILES	C1=CC(=C(C(=C1)N=NC2=CC(=C(C=C2)O)C(=O)O)O)C(=O)O
PubChem CID	136691445

Physical properties
Physical form	Solid
LogP (XLogP3)	3.1
H-bond donors / acceptors	4 / 8
TPSA	140 Å²
Synonyms	Olsalazine Sodium - Impurity B, Olsalazine Impurity B, 4-Dehydroxy-2-hydroxy Olsalazine, 3-((3-Carboxy-4-hydroxyphenyl)diazenyl)-2-hydroxybenzoic acid, (E)-3-((3-carboxy-4-hydroxyphenyl)diazenyl)-2-hydroxybenzoic acid

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 Olsalazine EP Impurity B?

The CAS Registry Number of Olsalazine EP Impurity B is 752188-68-4. It is also known as Olsalazine Sodium - Impurity B, Olsalazine Impurity B, 4-Dehydroxy-2-hydroxy Olsalazine.

What is the molecular formula and molecular weight of Olsalazine EP Impurity B?

Olsalazine EP Impurity B has the molecular formula C14H10N2O6 and a molecular weight of 302.24 g/mol. Its IUPAC name is 3-[(3-carboxy-4-hydroxyphenyl)diazenyl]-2-hydroxybenzoic acid.

What is Olsalazine EP Impurity B used for?

Olsalazine EP Impurity B is supplied as a characterised reference material related to Olsalazine. 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 Olsalazine EP Impurity B can I order?

We supply Olsalazine EP Impurity B 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 Olsalazine EP Impurity B?

Yes. Every lot of Olsalazine EP Impurity B 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 Olsalazine EP Impurity B be shipped internationally?

Yes. We export Olsalazine EP Impurity B worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.