Olsalazine Sodium - Impurity C

Name: Olsalazine Sodium - Impurity C
Brand: Vaqora Chemicals
SKU: VQ-027008

About Olsalazine Sodium - Impurity C

Olsalazine Sodium - Impurity C (CAS 259151-72-9) is an impurity of Olsalazine offered by Vaqora Chemicals. The compound has the formula C13H10N2O4, corresponding to a molecular weight of 258.23 g/mol. Systematically, it is named 2-hydroxy-5-[(4-hydroxyphenyl)diazenyl]benzoic acid. Common synonyms include Olsalazine EP Impurity C and Olsalazine impurity C.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Olsalazine, 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.

Vaqora Chemicals supplies Olsalazine Sodium - Impurity C in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Olsalazine

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

Olsalazine impurities

Specifications & identifiers

Chemical identifiers
Product name	Olsalazine Sodium - Impurity C
Catalogue No.	VQ-027008
CAS Number	259151-72-9
IUPAC name	2-hydroxy-5-[(4-hydroxyphenyl)diazenyl]benzoic acid
Molecular formula	C₁₃H₁₀N₂O₄
Molecular weight	258.23 g/mol
Exact mass	258.0641
Grade	Reference Standard
HSN code	38229090
InChIKey	VHWJQYQMHYGVIE-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1N=NC2=CC(=C(C=C2)O)C(=O)O)O
PubChem CID	135829783

Physical properties
Physical form	Solid
LogP (XLogP3)	4
H-bond donors / acceptors	3 / 6
TPSA	102 Å²
Synonyms	Olsalazine EP Impurity C, Olsalazine impurity C, 3-Descarboxy Olsalazine, (E)-2-hydroxy-5-((4-hydroxyphenyl)diazenyl)benzoic acid, 2-Hydroxy-5-((4-hydroxyphenyl)diazenyl)benzoic acid, 5-(4-hydroxyphenylazo)salicylic acid, 2-hydroxy-5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]benzoic acid, 2-hydroxy-5-(4-hydroxyphenyl)azo-benzoic acid, Benzoic acid, 2-hydroxy-5-[(4-hydroxyphenyl)azo]-, 2-hydroxy-5-[2-(4-hydroxyphenyl)diazen-1-yl]benzoic acid, 2- Hydroxy- 5- [2- (4- hydroxyphenyl) diazenyl] -benzoic 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 Sodium - Impurity C?

The CAS Registry Number of Olsalazine Sodium - Impurity C is 259151-72-9. It is also known as Olsalazine EP Impurity C, Olsalazine impurity C, 3-Descarboxy Olsalazine.

What is the molecular formula and molecular weight of Olsalazine Sodium - Impurity C?

Olsalazine Sodium - Impurity C has the molecular formula C13H10N2O4 and a molecular weight of 258.23 g/mol. Its IUPAC name is 2-hydroxy-5-[(4-hydroxyphenyl)diazenyl]benzoic acid.

What is Olsalazine Sodium - Impurity C used for?

Olsalazine Sodium - Impurity C 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 Sodium - Impurity C can I order?

We supply Olsalazine Sodium - Impurity C 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 Sodium - Impurity C?

Yes. Every lot of Olsalazine Sodium - Impurity C 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 Sodium - Impurity C be shipped internationally?

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