Quetiapine EP Impurity Q Chloride HCl CAS CATO-C4X-124436
| CAS No. | CATO-C4X-124436 |
| Molecular Formula | C25H34N3O4S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Quetiapine EP Impurity Q Chloride HCl is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Quetiapine EP Impurity Q Chloride HCl (CAS CATO-C4X-124436), a pharmacopoeial impurity reference standard (molecular formula C25H34N3O4SHClCl, MW 544.53 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Quetiapine EP Impurity Q Chloride HCl is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 544.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Quetiapine EP Impurity Q Chloride HCl meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C25H34N3O4S HCl Cl |
| Molecular Weight | 544.53 g/mol |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Quetiapine Standards
- Quetiapine Carboxylate Impurity (CAS 1011758-00-1)
- Quetiapine EP Impurity P (CAS 1011758-03-4)
- Quetiapine EP Impurity P Hemifumarate (CAS 1011758-03-4（free base）)
- Quetiapine Impurity 56 (CAS 1015-89-0)
- Quetiapine Impurity N3 (CAS 102893-57-2)
- Quetiapine-d8 HemifumarateDISCONTINUED. Please see Q510002. (CAS 1031703-36-2)
- Quetiapine EP Impurity H (CAS 1076199-40-0)
- Quetiapine (CAS 111974-69-7)
Recommended Standards
- Epalrestat Impurity 43 (CAS CATO-C4X-223643)
- Bromfenac Impurity 19 (CAS 33244-57-4)
- Proguanil impurity 1 (CAS CATO-C4X-17391)
- Esomeprazol Impurity H431 (CAS 1227380-90-6)
- 2-azabicyclo[2.2.2]octane hydrochloride (CAS 5845-15-8)
- 1H-Pyrido[3,4-d][1,3]oxazin-2(4H)-one (CAS 1934417-19-2)
- Ioversol Impurity 25 (CAS CATO-C4X-209125)
- (S)-1-Methylisoindoline (CAS 174390-66-0)
- 2-(1H-Benzo[d]imidazol-4-yl)-N-hydroxyacetimidamide (CAS 90558-64-8)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com