Quetiapine Impurity 35 CAS 329216-65-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 329216-65-1 |
| Molecular Formula | C21H25N3O4S |
| Molecular Weight | 415.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Quetiapine Impurity 35 (CAS 329216-65-1), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H25N3O4S. Molecular weight: 415.51 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H25N3O4S |
| Molecular Weight | 415.51 g/mol |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Quetiapine Standards
- Quetiapine Impurity 51 (CAS 1185170-04-0)
- Quetiapine impurity 73 (CAS CATO-C4X-124473)
- Quetiapine EP Impurity L (CAS 1371638-11-7)
- Quetiapine Impurity N2 (CAS 2206135-50-2)
- Quetiapine EP Impurity A (CAS 844639-07-2)
- Quetiapine Carboxylate Impurity (CAS 1011758-00-1)
- Quetiapine Impurity N3 (CAS 102893-57-2)
- Quetiapine Impurity 4 (CAS 1241800-24-7)
Recommended Standards
- Carbamazepine Impurity 6 (CAS 40421-03-2)
- Tert-butyl 4-(3-benzamidothiophene-2-carbonyl)piperazine-1-carboxylate (CAS 692738-33-3)
- sabeluzole (CAS 104383-17-7)
- Sodium aminosalicylate Impurity 4 (CAS 17540-51-1)
- Mirabegron Impurity 35 (CAS CATO-C4X-103235)
- 1-(Bromomethyl)-4-methyl-1-(2-propoxyethoxy)cyclohexane (CAS 1339451-99-8)
- 2-Cyclopropanecarbonyl-4-ethylphenol (CAS 847344-89-2)
- Methyl 2-hydroxy-5-iodo-4-(trifluoromethyl)benzoate (CAS 1131587-48-8)
- (3-((Tetrahydro-2h-pyran-2-yl)methoxy)phenyl)boronic acid (CAS 1311185-12-2)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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 13829788188 / jacky.chen@cato-chem.com