![11-(1-Piperazinyl)-dibenzo[b,f][1,4]thiazepin-7-ol chemical structure](/media/structures/CAWOJGJDGLXKTF-UHFFFAOYSA-N.svg)
11-(1-Piperazinyl)-dibenzo[b,f][1,4]thiazepin-7-ol
- CAS
- 232597-73-8
- Formula
- C17H17N3OS
- MW
- 311.4 g/mol
VQ-033406
Impurity reference standards
Quetiapine impurities & reference standards
Characterised Quetiapine impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
63reference materials
2nitrosamine impurities
3isotope-labelled
COAHPLC · NMR · MS on request
Parent API: Quetiapine Fumarate
111974-72-2 · C46H54N6O8S2
![11-[4-[2-[2-(1-Piperazinyl)ethoxy]ethyl]-1-piperazinyl]dibenzo[b,f][1,4]thiazepine](/media/pack/11-4-2-2-1-piperazinylethoxyethyl-1-piperazinyldibenzobf14thiazepine.svg?v=3)
11-[4-[2-[2-(1-Piperazinyl)ethoxy]ethyl]-1-piperazinyl]dibenzo[b,f][1,4]thiazepine
- CAS
- 1800291-87-5
- Formula
- C25H33N5OS
- MW
- 451.63 g/mol
VQ-041790
![11-Ethoxydibenzo[b,f][1,4]thiazepine](/media/pack/11-ethoxydibenzobf14thiazepine.svg?v=3)
![2-(2-(2-(4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethoxy)ethanol](/media/pack/2-2-2-4-dibenzobf14thiazepin-11-ylpiperazin-1-ylethoxyethoxyethanol.svg?v=3)
2-(2-(2-(4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethoxy)ethanol
- CAS
- 329216-69-5
- Formula
- C23H29N3O3S
- MW
- 427.6 g/mol
VQ-027694
![2-[(4-Aminophenyl)thio]benzonitrile chemical structure](/media/structures/IUGPUIIHUVWKED-UHFFFAOYSA-N.svg)
![Dibenzo[b,f][1,4]thiazepin-11(10H)-one, 5-oxide chemical structure](/media/structures/LPGBNFSOYNAJTR-UHFFFAOYSA-N.svg)
![N-Des[2-(2-Hydroxyethoxy) Ethyl] Quetiapine-d8 chemical structure](/media/structures/JLOAJISUHPIQOX-PMCMNDOISA-N.svg)
![N,N-Diethyldibenzo[b,f][1,4]thiazepin-11-amine](/media/pack/nn-diethyldibenzobf14thiazepin-11-amine.svg?v=3)
![Phenyl [2-phenylthio)phenyl]carbamate chemical structure](/media/structures/FWULFEHVLSQUBD-UHFFFAOYSA-N.svg)
Quetiapine EP Impurity A (Hydrochloride)
- CAS
- 2206607-08-9
- Formula
- C23H27N3O3S.ClH
- MW
- 462.01 g/mol
VQ-006611
Quetiapine EP Impurity E Tetrahydrochloride
- CAS
- 1923194-81-3
- Formula
- C40H48Cl4N6O2S2
- MW
- 850.8 g/mol
VQ-006615
Quetiapine Impurity S (Dihydrochloride Salt)
- CAS
- 329218-11-3
- Formula
- C21H27Cl2N3O3S
- MW
- 472.4 g/mol
VQ-005673
FAQs — Quetiapine impurities
Which Quetiapine impurities do you supply?
We list 63 Quetiapine-related reference materials, including process impurities, degradation products, nitrosamine impurities, stable-isotope-labelled standards and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Quetiapine impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Quetiapine impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Quetiapine impurity standards
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