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API Impurities

3-Methylbenzenesulfonic Acid

Reference StandardAvailable on request

Order 3-Methylbenzenesulfonic Acid (CAS 617-97-0) online at Zemixal: C7H8O3S, COA and SDS with every lot, worldwide shipping.

Pack sizes
3-Methylbenzenesulfonic Acid chemical structure
CAS number617-97-0
FormulaC7H8O3S
Molar mass172.2 g/mol
Physical formSolid
HS code38229090
InChIKeyJDQDSEVNMTYMOC-UHFFFAOYSA-N
IUPAC name3-methylbenzenesulfonic acid

About 3-Methylbenzenesulfonic Acid

3-Methylbenzenesulfonic Acid belongs to the Niraparib reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 617-97-0, formula C7H8O3S and molar mass 172.2 g/mol. It is handled as a solid.

Use cases we see most often

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

Safe handling

Classified under GHS with signal word Danger and hazard statements H314 and H335. Read the SDS before first use.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Niraparib

See every impurity, metabolite and related compound we list for this API.

Niraparib standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of 3-Methylbenzenesulfonic Acid
Product name3-Methylbenzenesulfonic Acid
Catalogue numberZX-031183
CAS number617-97-0
IUPAC name3-methylbenzenesulfonic acid
Molecular formulaC7H8O3S
Molar mass172.2 g/mol
Exact mass172.0194
GradeReference Standard
Physical formSolid
XLogP31
H-bond donors / acceptors1 / 3
Topological polar surface area62.8 Ų
HS code38229090
InChIKeyJDQDSEVNMTYMOC-UHFFFAOYSA-N
SMILESCC1=CC(=CC=C1)S(=O)(=O)O
PubChem CID105362
Synonymsm-toluenesulfonic acid, Toluene-3-sulfonic acid, Benzenesulfonic acid, 3-methyl-, 3-methylbenzene-1-sulfonic acid, meta-toluene sulfonic acid, 5-Methylbenzenesulfonic acid

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • 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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 3-Methylbenzenesulfonic Acid
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 3-Methylbenzenesulfonic Acid

Which CAS number identifies 3-Methylbenzenesulfonic Acid?
3-Methylbenzenesulfonic Acid is registered under CAS 617-97-0. You may also see it listed as m-toluenesulfonic acid, Toluene-3-sulfonic acid, Benzenesulfonic acid, 3-methyl-. Our catalogue number for this item is ZX-031183.
What are the formula and molar mass of 3-Methylbenzenesulfonic Acid?
For 3-Methylbenzenesulfonic Acid, its formula is C7H8O3S and its molar mass is 172.2 g/mol. The systematic (IUPAC) name is 3-methylbenzenesulfonic acid. InChIKey JDQDSEVNMTYMOC-UHFFFAOYSA-N lets you match it in any structure database.
How is 3-Methylbenzenesulfonic Acid used in pharmaceutical QC?
3-Methylbenzenesulfonic Acid is a characterised reference material linked to Niraparib. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for 3-Methylbenzenesulfonic Acid?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 3-Methylbenzenesulfonic Acid?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 3-Methylbenzenesulfonic Acid to my country?
Yes. Because 3-Methylbenzenesulfonic Acid is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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