Quetiapine EP Impurity D CAS 945668-94-0
| CAS No. | 945668-94-0 |
| Molecular Formula | C30H24N4S2 |
| Molecular Weight | 504.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a process- or degradation-related impurity, Quetiapine EP Impurity D (CAS 945668-94-0, C30H24N4S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C30H24N4S2, Quetiapine EP Impurity D contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 504.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO manufactures Quetiapine EP Impurity D under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C30H24N4S2 |
| Molecular Weight | 504.67 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Quetiapine Standards
- Quetiapine EP Impurity J (CAS 1356906-17-6)
- Quetiapine EP Impurity N (CAS 1800291-86-4)
- Quetiapine EP Impurity K (CAS 1371638-10-6)
- Quetiapine Impurity 3 (CAS CATO-C4X-12443)
- Quetiapine Impurity N3 (CAS 102893-57-2)
- Quetiapine Carboxylate Impurity (CAS 1011758-00-1)
- Quetiapine EP Impurity A (CAS 844639-07-2)
- Quetiapine EP Impurity L (CAS 1371638-11-7)
Recommended Standards
- Thiovardenafil (CAS 912576-24-0)
- Thioaildenafil (CAS 856190-47-1)
- ThiodimethylsildenafilDISCONTINUED. Please offer T344365. (CAS 1260112-90-0)
- Propoxyphenyl Thiosildenafil (CAS 479073-87-5)
- Peramivir Impurity 22 HCl (CAS CATO-C4X-183322)
- Upadacitinib Impurity 180 (CAS CATO-C4X-2405180)
- Montelukast Impurity 52 Dicyclohexylamine (CAS CATO-C4X-103152)
- N-[4-Chloro-2-(Trifluoromethyl)Phenyl]-1-[2,3-Dichloroprop-2-Enyl]Pyrrolidin-2-Imine (CAS 32280-92-5)
- tert-Butyl n-(1-aminopentan-2-yl)carbamate (CAS 1342578-12-4)
- Ethyl 1-(2-(3-(3-chloro-4-methoxyphenyl)ureido)-2-methylpropanoyl)piperidine-4-carboxylate (CAS 1439375-03-7)
- Methyl 4-(5-aminopyridin-2-yl)benzoate (CAS 223127-54-6)
- 6-Bromo-N1-isopropylbenzene-1,2-diamine (CAS 1147015-10-8)
- 5-Methyl-N-(naphthalen-2-yl)-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine (CAS 92872-51-0)
- Semaglutide impurity 50 (CAS 2773558-66-8)
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