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Pharmacopeial Impurities (EP / USP / BP)

Metixene EP Impurity A

Reference StandardAvailable on request

Order Metixene EP Impurity A (CAS 261-31-4) online at Zemixal: C13H10S, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-044568.

Pack sizes
Metixene EP Impurity A chemical structure
CAS number261-31-4
FormulaC13H10S
Molar mass198.29 g/mol
Physical formSolid
HS code38229090
InChIKeyPQJUJGAVDBINPI-UHFFFAOYSA-N
IUPAC name9H-thioxanthene

About Metixene EP Impurity A

Zemixal lists Metixene EP Impurity A for laboratories that identify, quantify or control Metixene and its related substances. For your records (Reference Standard), the material is defined by CAS 261-31-4, formula C13H10S and molar mass 198.29 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

Hazard communication follows GHS (Warning: H302, H400 and H410). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Every shipment includes a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Metixene

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

Metixene 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 Metixene EP Impurity A
Product nameMetixene EP Impurity A
Catalogue numberZX-044568
CAS number261-31-4
IUPAC name9H-thioxanthene
Molecular formulaC13H10S
Molar mass198.29 g/mol
Exact mass198.0503
GradeReference Standard
Physical formSolid
XLogP33.9
H-bond donors / acceptors0 / 1
Topological polar surface area25.3 Ų
HS code38229090
InChIKeyPQJUJGAVDBINPI-UHFFFAOYSA-N
SMILESC1C2=CC=CC=C2SC3=CC=CC=C31
PubChem CID67495
SynonymsMetixene Hydrochloride - Impurity A, Thioxanthene, Thioxanthine, Thiaxanthene, 10H-Dibenzo(b,e)thiin, 10H-dibenzo[b,e]thiin, 9H-thioxanthen, 10H-dibenzo[b,e]thiopyran

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
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Warning

  • H302Harmful if swallowed
  • H400Very toxic to aquatic life
  • H410Very toxic to aquatic life with long lasting effects

Precautionary statements P264, P270, P273, P301 + P317, P330, P391, 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 Metixene 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 Metixene EP Impurity A

Which CAS number identifies Metixene EP Impurity A?
Metixene EP Impurity A is registered under CAS 261-31-4. You may also see it listed as Metixene Hydrochloride - Impurity A, Thioxanthene, Thioxanthine. Our catalogue number for this item is ZX-044568.
What are the formula and molar mass of Metixene EP Impurity A?
For Metixene EP Impurity A, its formula is C13H10S and its molar mass is 198.29 g/mol. The systematic (IUPAC) name is 9H-thioxanthene. InChIKey PQJUJGAVDBINPI-UHFFFAOYSA-N lets you match it in any structure database.
How is Metixene EP Impurity A used in pharmaceutical QC?
Metixene EP Impurity A is a characterised reference material linked to Metixene. 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 Metixene 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 Metixene 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 Metixene EP Impurity A to my country?
Yes. Because Metixene 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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