Shipping to 128 countriesCOA and SDS with every lotQuotes within one business day
contact@zemixal.com
Bulk CASAccount
Pharmacopeial Impurities (EP / USP / BP)

Ketotifen EP Impurity C

Reference StandardAvailable on request

Buy Ketotifen EP Impurity C (CAS 126939-27-3) from Zemixal: C19H21NO2S, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-027709.

Pack sizes
Ketotifen EP Impurity C chemical structure
CAS number126939-27-3
FormulaC19H21NO2S
Molar mass327.4 g/mol
Physical formSolid
HS code38229090
InChIKeyLZPRFURMCOCGDP-UHFFFAOYSA-N
IUPAC name2-hydroxy-2-(1-methylpiperidin-4-yl)-6-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),4,10,12-pentaen-8-one

About Ketotifen EP Impurity C

Analytical teams working on Ketotifen use Ketotifen EP Impurity C as a qualified comparison standard. Key data (Reference Standard): CAS 126939-27-3, formula C19H21NO2S and molar mass 327.4 g/mol. It is handled as a solid.

Use cases we see most often

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

Safe handling

Hazard communication follows GHS (Warning: H302). 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. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Ketotifen

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

Ketotifen 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 Ketotifen EP Impurity C
Product nameKetotifen EP Impurity C
Catalogue numberZX-027709
CAS number126939-27-3
IUPAC name2-hydroxy-2-(1-methylpiperidin-4-yl)-6-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),4,10,12-pentaen-8-one
Molecular formulaC19H21NO2S
Molar mass327.4 g/mol
Exact mass327.1293
GradeReference Standard
Physical formSolid
XLogP32.8
H-bond donors / acceptors1 / 4
Topological polar surface area68.8 Ų
HS code38229090
InChIKeyLZPRFURMCOCGDP-UHFFFAOYSA-N
SMILESCN1CCC(CC1)C2(C3=C(C(=O)CC4=CC=CC=C42)SC=C3)O
PubChem CID12274855
SynonymsKetotifen Impurity C, Ketotifen Fumarate EP Impurity C, Ketotifen Fumarate - Impurity C, 4-Hydroxy Ketotifen, 4-hydroxy-4-(1-methylpiperidin-4-yl)-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-10(9H)-one

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

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, 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 Ketotifen EP Impurity C
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 Ketotifen EP Impurity C

Which CAS number identifies Ketotifen EP Impurity C?
Ketotifen EP Impurity C is registered under CAS 126939-27-3. You may also see it listed as Ketotifen Impurity C, Ketotifen Fumarate EP Impurity C, Ketotifen Fumarate - Impurity C. Our catalogue number for this item is ZX-027709.
What are the formula and molar mass of Ketotifen EP Impurity C?
For Ketotifen EP Impurity C, its formula is C19H21NO2S and its molar mass is 327.4 g/mol. The systematic (IUPAC) name is 2-hydroxy-2-(1-methylpiperidin-4-yl)-6-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),4,10,12-pentaen-8-one. InChIKey LZPRFURMCOCGDP-UHFFFAOYSA-N lets you match it in any structure database.
How is Ketotifen EP Impurity C used in pharmaceutical QC?
Ketotifen EP Impurity C is a characterised reference material linked to Ketotifen. 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 Ketotifen EP Impurity C?
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 Ketotifen EP Impurity C?
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 Ketotifen EP Impurity C to my country?
Yes. Because Ketotifen EP Impurity C 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.

More Ketotifen standards

More in Pharmacopeial Impurities (EP / USP / BP)

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Bulk CAS lookup Open quote list
Compare 0 of 4Compare now