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Pharmacopeial Impurities (EP / USP / BP)

Tiotropium EP Impurity A

Reference StandardAvailable on request

Order Tiotropium EP Impurity A (CAS 4746-63-8) online at Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Tiotropium EP Impurity A chemical structure
CAS number4746-63-8
FormulaC10H8O3S2
Molar mass240.3 g/mol
Physical formSolid
HS code38229090
InChIKeyFVEJUHUCFCAYRP-UHFFFAOYSA-N
IUPAC name2-hydroxy-2,2-dithiophen-2-ylacetic acid

About Tiotropium EP Impurity A

Zemixal lists Tiotropium EP Impurity A for laboratories that identify, quantify or control Tiotropium and its related substances. For your records (Reference Standard), the material is defined by CAS 4746-63-8, formula C10H8O3S2 and molar mass 240.3 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

Safe handling

Classified under GHS with signal word Danger and hazard statements H331. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. 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 Tiotropium

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

Tiotropium 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 Tiotropium EP Impurity A
Product nameTiotropium EP Impurity A
Catalogue numberZX-022916
CAS number4746-63-8
IUPAC name2-hydroxy-2,2-dithiophen-2-ylacetic acid
Molecular formulaC10H8O3S2
Molar mass240.3 g/mol
Exact mass239.9915
GradeReference Standard
Physical formSolid
XLogP31.7
H-bond donors / acceptors2 / 5
Topological polar surface area114 Ų
HS code38229090
InChIKeyFVEJUHUCFCAYRP-UHFFFAOYSA-N
SMILESC1=CSC(=C1)C(C2=CC=CS2)(C(=O)O)O
PubChem CID12723754
SynonymsTiotropium Bromide - Impurity A, 2-Hydroxy-2,2-bis(2-thienyl) Acetic Acid, Di-2-thienylglycolic acid, 2-Hydroxy-2,2-di(thiophen-2-yl)acetic acid, Glycolic acid, di-2-thienyl-, (Hydroxy)(di-2-thienyl)acetic acid, 2-hydroxy-2,2-bis(thiophen-2-yl)acetic acid, 2-hydroxy-2,2-di(2-thienyl)acetic acid, dithienylglycolic acid, Tiotropium Impurity A, alpha,alpha-Di(2-thienyl)glycolic acid, 2-Thiopheneacetic acid, alpha-hydroxy-alpha-2-thienyl-

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

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity

Signal word Danger

  • H331Toxic if inhaled

Precautionary statements P261, P271, P304 + P340, P316, P321, 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 Tiotropium EP Impurity A
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 Tiotropium EP Impurity A

Which CAS number identifies Tiotropium EP Impurity A?
Tiotropium EP Impurity A is registered under CAS 4746-63-8. You may also see it listed as Tiotropium Bromide - Impurity A, 2-Hydroxy-2,2-bis(2-thienyl) Acetic Acid, Di-2-thienylglycolic acid. Our catalogue number for this item is ZX-022916.
What are the formula and molar mass of Tiotropium EP Impurity A?
For Tiotropium EP Impurity A, its formula is C10H8O3S2 and its molar mass is 240.3 g/mol. The systematic (IUPAC) name is 2-hydroxy-2,2-dithiophen-2-ylacetic acid. InChIKey FVEJUHUCFCAYRP-UHFFFAOYSA-N lets you match it in any structure database.
How is Tiotropium EP Impurity A used in pharmaceutical QC?
Tiotropium EP Impurity A is a characterised reference material linked to Tiotropium. 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 Tiotropium EP Impurity A?
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 Tiotropium EP Impurity A?
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 Tiotropium EP Impurity A to my country?
Yes. Because Tiotropium EP Impurity A 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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