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API Impurities

Quetiapine Impurity S

Reference StandardAvailable on request

Quetiapine Impurity S (CAS 329216-63-9) supplier Zemixal: C21H25N3O3S, COA and SDS with every lot, worldwide shipping. Part of our API Impurities range.

Pack sizes
Quetiapine Impurity S chemical structure
CAS number329216-63-9
FormulaC21H25N3O3S
Molar mass399.5 g/mol
Physical formSolid
HS code38229090
InChIKeyFXJNLPUSSHEDON-NDEPHWFRSA-N
IUPAC name2-[2-[4-[(11S)-11-oxobenzo[b][1,4]benzothiazepin-6-yl]piperazin-1-yl]ethoxy]ethanol

About Quetiapine Impurity S

Analytical teams working on Quetiapine use Quetiapine Impurity S as a qualified comparison standard. Key data (Reference Standard): CAS 329216-63-9, formula C21H25N3O3S and molar mass 399.5 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Safe handling

Classified under GHS with signal word Warning and hazard statements H302. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. 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 Quetiapine

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

Quetiapine standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of Quetiapine Impurity S
Product nameQuetiapine Impurity S
Catalogue numberZX-005207
CAS number329216-63-9
Other CAS numbers2448341-72-6, 329218-11-3
IUPAC name2-[2-[4-[(11S)-11-oxobenzo[b][1,4]benzothiazepin-6-yl]piperazin-1-yl]ethoxy]ethanol
Molecular formulaC21H25N3O3S
Molar mass399.5 g/mol
Exact mass399.1617
GradeReference Standard
Physical formSolid
XLogP30.9
H-bond donors / acceptors1 / 7
Topological polar surface area94.1 Ų
HS code38229090
InChIKeyFXJNLPUSSHEDON-NDEPHWFRSA-N
SMILESC1CN(CCN1CCOCCO)C2=NC3=CC=CC=C3[S@@](=O)C4=CC=CC=C42
PubChem CID10431050
Synonyms2-[2-[4-(5-Oxidodibenzo[b,f][1,4]thiazepin-11-yl)-1-piperazinyl]ethoxy]ethanol, Quetiapine S-Oxide, Quetiapine Sulfoxide, Ethanol, 2-[2-[4-(5-oxidodibenzo[b,f][1,4]thiazepin-11-yl)-1-piperazinyl]ethoxy]-, 2-(2-(4-(5-Oxidodibenzo(b,f)(1,4)thiazepin-11-yl)piperazin-1-yl)ethoxy)ethanol, Ethanol, 2-(2-(4-(5-oxidodibenzo(b,f)(1,4)thiazepin-11-yl)-1-piperazinyl)ethoxy)-, Quetiapine fumarate impurity S, Quetiapine EP Impurity S, 2-[2-[4-(11-oxobenzo[b][1,4]benzothiazepin-6-yl)piperazin-1-yl]ethoxy]ethanol, QuetiapineSulfoxide, Quetiapine-sulfoxide, Quetiapine metabolite Quetiapine sulfoxide

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 Quetiapine Impurity S
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 Quetiapine Impurity S

Which CAS number identifies Quetiapine Impurity S?
Quetiapine Impurity S is registered under CAS 329216-63-9. You may also see it listed as 2-[2-[4-(5-Oxidodibenzo[b,f][1,4]thiazepin-11-yl)-1-piperazinyl]ethoxy]ethanol, Quetiapine S-Oxide, Quetiapine Sulfoxide. Our catalogue number for this item is ZX-005207.
What are the formula and molar mass of Quetiapine Impurity S?
For Quetiapine Impurity S, its formula is C21H25N3O3S and its molar mass is 399.5 g/mol. The systematic (IUPAC) name is 2-[2-[4-[(11S)-11-oxobenzo[b][1,4]benzothiazepin-6-yl]piperazin-1-yl]ethoxy]ethanol. InChIKey FXJNLPUSSHEDON-NDEPHWFRSA-N lets you match it in any structure database.
How is Quetiapine Impurity S used in pharmaceutical QC?
Quetiapine Impurity S is a characterised reference material linked to Quetiapine. 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 Quetiapine Impurity S?
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 Quetiapine Impurity S?
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 Quetiapine Impurity S to my country?
Yes. Because Quetiapine Impurity S 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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