4-Aminosalicylic acid, 99%

Name: 4-Aminosalicylic acid, 99%
Brand: Vaqora Chemicals
SKU: VQ-008329

About 4-Aminosalicylic acid, 99%

4-Aminosalicylic acid (CAS 65-49-6) is a carboxylic acid offered by Vaqora Chemicals in Synthesis grade with a typical assay of 99%. With the molecular formula C7H7NO3, it has a molar mass of 153.14 g/mol. Its systematic (IUPAC) name is 4-amino-2-hydroxybenzoic acid. Alternative names: PAS and Aminosalicylic acid.

It is supplied as a white to beige to brown powder. Key physical data: a melting point of 135-145 °C and a density of 1.49 g/cm3 (Predicted). Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for pharmaceutical synthesis and organic synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer 4-Aminosalicylic acid in 5 g, 100 g and 500 g packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Pharmaceutical synthesis
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	4-Aminosalicylic acid, 99%
Catalogue No.	VQ-008329
CAS Number	65-49-6
IUPAC name	4-amino-2-hydroxybenzoic acid
Molecular formula	C₇H₇NO₃
Molecular weight	153.14 g/mol
Exact mass	153.0426
Grade	Synthesis
Purity / assay	99%
HSN code	29221990
InChIKey	WUBBRNOQWQTFEX-UHFFFAOYSA-N
SMILES	C1=CC(=C(C=C1N)O)C(=O)O
PubChem CID	4649

Physical properties
Physical form	Powder
Appearance	White to beige to brown powder
Melting point	135-145 °C
Density	1.49 g/cm3 (Predicted)
LogP (XLogP3)	1.3
H-bond donors / acceptors	3 / 4
TPSA	83.6 Å²
Synonyms	PAS, Aminosalicylic acid, Paramycin, Parasal, Pamacyl, Osacyl, Para-Pas, Sanipirol-4, Benzoic acid, 4-amino-2-hydroxy-, Pasdium, 2-Hydroxy-4-aminobenzoic acid, Hellipidyl

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-Aminosalicylic acid, 99%?

The CAS Registry Number of 4-Aminosalicylic acid, 99% is 65-49-6. It is also known as PAS, Aminosalicylic acid, Paramycin.

What is the molecular formula and molecular weight of 4-Aminosalicylic acid, 99%?

4-Aminosalicylic acid, 99% has the molecular formula C7H7NO3 and a molecular weight of 153.14 g/mol. Its IUPAC name is 4-amino-2-hydroxybenzoic acid.

Which grade and pack sizes of 4-Aminosalicylic acid, 99% can I order?

We supply 4-Aminosalicylic acid, 99% in Synthesis (99%) grade, in 5 g, 100 g, 500 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4-Aminosalicylic acid, 99%?

Yes. Every lot of 4-Aminosalicylic acid, 99% 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-Aminosalicylic acid, 99% be shipped internationally?

Yes. 4-Aminosalicylic acid, 99% 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.