4-Hydroxyphthalic acid

Name: 4-Hydroxyphthalic acid
Brand: Vaqora Chemicals
SKU: VQ-038973

About 4-Hydroxyphthalic acid

Listed under CAS 610-35-5, 4-Hydroxyphthalic acid is a metabolite or degradation product of Phthalic acid available from Vaqora Chemicals. With the molecular formula C8H6O5, it has a molar mass of 182.13 g/mol. It is also known as 4-hydroxybenzene-1,2-dicarboxylic acid or 1,2-Benzenedicarboxylic acid, 4-hydroxy-.

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. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Analytical teams use this compound to identify metabolites and degradants of Phthalic acid, to validate stability-indicating methods (AMV) and to support QC and regulatory filings. 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

Metabolite identification
Stability-indicating methods
Impurity profiling
Fine chemical synthesis

Industries

Related to Phthalic acid

View every impurity, metabolite and intermediate we list for Phthalic acid.

Phthalic acid impurities

Specifications & identifiers

Chemical identifiers
Product name	4-Hydroxyphthalic acid
Catalogue No.	VQ-038973
CAS Number	610-35-5
IUPAC name	4-hydroxyphthalic acid
Molecular formula	C₈H₆O₅
Molecular weight	182.13 g/mol
Exact mass	182.0215
Grade	Reference Standard
HSN code	38229090
InChIKey	MWRVRCAFWBBXTL-UHFFFAOYSA-N
SMILES	C1=CC(=C(C=C1O)C(=O)O)C(=O)O
PubChem CID	11881

Physical properties
Physical form	Solid
LogP (XLogP3)	1
H-bond donors / acceptors	3 / 5
TPSA	94.8 Å²

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

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 4-Hydroxyphthalic acid?

The CAS Registry Number of 4-Hydroxyphthalic acid is 610-35-5. It is also known as 4-hydroxybenzene-1,2-dicarboxylic acid, 1,2-Benzenedicarboxylic acid, 4-hydroxy-.

What is the molecular formula and molecular weight of 4-Hydroxyphthalic acid?

4-Hydroxyphthalic acid has the molecular formula C8H6O5 and a molecular weight of 182.13 g/mol. Its IUPAC name is 4-hydroxyphthalic acid.

What is 4-Hydroxyphthalic acid used for?

4-Hydroxyphthalic acid is supplied as a characterised reference material related to Phthalic acid. 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-Hydroxyphthalic acid can I order?

We supply 4-Hydroxyphthalic 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-Hydroxyphthalic acid?

Yes. Every lot of 4-Hydroxyphthalic 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-Hydroxyphthalic acid be shipped internationally?

Yes. 4-Hydroxyphthalic 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.