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Pharmacopeial Impurities (EP / USP / BP)

Torasemide EP Impurity B

Reference StandardAvailable on request

Order Torasemide EP Impurity B (CAS 72811-73-5) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
Torasemide EP Impurity B chemical structure
CAS number72811-73-5
FormulaC12H13N3O2S
Molar mass263.32 g/mol
Physical formSolid
HS code38229090
InChIKeyZXPCUGWAKUIOOF-UHFFFAOYSA-N
IUPAC name4-(3-methylanilino)pyridine-3-sulfonamide

About Torasemide EP Impurity B

Zemixal lists Torasemide EP Impurity B for laboratories that identify, quantify or control Torasemide and its related substances. Key data (Reference Standard): CAS 72811-73-5, formula C12H13N3O2S and molar mass 263.32 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H315, H319 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. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Torasemide

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

Torasemide standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Torasemide EP Impurity B
Product nameTorasemide EP Impurity B
Catalogue numberZX-022936
CAS number72811-73-5
IUPAC name4-(3-methylanilino)pyridine-3-sulfonamide
Molecular formulaC12H13N3O2S
Molar mass263.32 g/mol
Exact mass263.0728
GradeReference Standard
Physical formSolid
XLogP31.9
H-bond donors / acceptors2 / 5
Topological polar surface area93.5 Ų
HS code38229090
InChIKeyZXPCUGWAKUIOOF-UHFFFAOYSA-N
SMILESCC1=CC(=CC=C1)NC2=C(C=NC=C2)S(=O)(=O)N
PubChem CID819349
SynonymsTorsemide Impurity B, Torasemide - Impurity B, 4-(3'-methylphenyl)amino-3-pyridinesulfonamide, 4-[(3-Methylphenyl)amino]-3-pyridinesulfonamide, 3-Sulfonamido-4-(3-methylanilino)pyridine, 4-((3-Methylphenyl)amino)-3-pyridinesulfonamide, 3-Pyridinesulfonamide, 4-((3-methylphenyl)amino)-, 3-Pyridinesulfonamide, 4-[(3-methylphenyl)amino]-, 4-(m-Tolylamino)pyridine-3-sulfonamide, 4-(3-Methylphenyl)Amino-3-Pyridinesulfonamide, 4-[(3-methylphenyl)amino]pyridine-3-sulfonamide, 4-(3-Methylphenyl)amino-3-Pyridine Sulfonamide

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • 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 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 Torasemide EP Impurity B
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 Torasemide EP Impurity B

Which CAS number identifies Torasemide EP Impurity B?
Torasemide EP Impurity B is registered under CAS 72811-73-5. You may also see it listed as Torsemide Impurity B, Torasemide - Impurity B, 4-(3'-methylphenyl)amino-3-pyridinesulfonamide. Our catalogue number for this item is ZX-022936.
What are the formula and molar mass of Torasemide EP Impurity B?
For Torasemide EP Impurity B, its formula is C12H13N3O2S and its molar mass is 263.32 g/mol. The systematic (IUPAC) name is 4-(3-methylanilino)pyridine-3-sulfonamide. InChIKey ZXPCUGWAKUIOOF-UHFFFAOYSA-N lets you match it in any structure database.
How is Torasemide EP Impurity B used in pharmaceutical QC?
Torasemide EP Impurity B is a characterised reference material linked to Torasemide. 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 Torasemide EP Impurity B?
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 Torasemide EP Impurity B?
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 Torasemide EP Impurity B to my country?
Yes. Because Torasemide EP Impurity B 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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