3-Methylbenzenesulfonic Acid

Name: 3-Methylbenzenesulfonic Acid
Brand: Vaqora Chemicals
SKU: VQ-032499

About 3-Methylbenzenesulfonic Acid

Vaqora Chemicals supplies 3-Methylbenzenesulfonic Acid, an impurity of Niraparib registered under CAS number 617-97-0. Formula C7H8O3S, molecular weight 172.2 g/mol. Common synonyms include m-toluenesulfonic acid and Toluene-3-sulfonic acid.

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. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Pharmaceutical QC and development laboratories use this impurity standard of Niraparib to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 3-Methylbenzenesulfonic 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 Niraparib

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

Niraparib impurities

Specifications & identifiers

Chemical identifiers
Product name	3-Methylbenzenesulfonic Acid
Catalogue No.	VQ-032499
CAS Number	617-97-0
IUPAC name	3-methylbenzenesulfonic acid
Molecular formula	C₇H₈O₃S
Molecular weight	172.2 g/mol
Exact mass	172.0194
Grade	Reference Standard
HSN code	38229090
InChIKey	JDQDSEVNMTYMOC-UHFFFAOYSA-N
SMILES	CC1=CC(=CC=C1)S(=O)(=O)O
PubChem CID	105362

Physical properties
Physical form	Solid
LogP (XLogP3)	1
H-bond donors / acceptors	1 / 3
TPSA	62.8 Å²
Synonyms	m-toluenesulfonic acid, Toluene-3-sulfonic acid, Benzenesulfonic acid, 3-methyl-, 3-methylbenzene-1-sulfonic acid, meta-toluene sulfonic acid, 5-Methylbenzenesulfonic acid

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage
H335May cause respiratory irritation

Precautionary statements: P260, P261, P264, P271, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P319, P321, P363, 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 3-Methylbenzenesulfonic Acid?

The CAS Registry Number of 3-Methylbenzenesulfonic Acid is 617-97-0. It is also known as m-toluenesulfonic acid, Toluene-3-sulfonic acid, Benzenesulfonic acid, 3-methyl-.

What is the molecular formula and molecular weight of 3-Methylbenzenesulfonic Acid?

3-Methylbenzenesulfonic Acid has the molecular formula C7H8O3S and a molecular weight of 172.2 g/mol. Its IUPAC name is 3-methylbenzenesulfonic acid.

What is 3-Methylbenzenesulfonic Acid used for?

3-Methylbenzenesulfonic Acid is supplied as a characterised reference material related to Niraparib. 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 3-Methylbenzenesulfonic Acid can I order?

We supply 3-Methylbenzenesulfonic 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 3-Methylbenzenesulfonic Acid?

Yes. Every lot of 3-Methylbenzenesulfonic 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 3-Methylbenzenesulfonic Acid be shipped internationally?

Yes. 3-Methylbenzenesulfonic 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.