Quetiapine EP Impurity L CAS 1371638-11-7
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1371638-11-7 |
| Molecular Formula | C21H24ClN3O2S |
| Molecular Weight | 417.95 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Quetiapine EP Impurity L (CAS 1371638-11-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H24ClN3O2S. Molecular weight: 417.95 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H24ClN3O2S |
| Molecular Weight | 417.95 g/mol |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 3-(4-Chlorophenyl)-5-(cinnamylthio)-4-(p-tolyl)-4H-1,2,4-triazole (CAS 477735-17-4)
- N-(3-(4-((2-Chloroethyl)(ethyl)amino)phenyl)propyl)acridin-9-amine (CAS 125486-24-0)
- (E)-4-(4-chlorophenyl)-3-((4-methylbenzyl)thio)-5-styryl-4H-1,2,4-triazole (CAS 551920-93-5)
- Mepivacaine EP Impurity D (CAS CATO-C4X-19286)
- Pioglitazone impurity 29 (CAS CATO-C4X-138329)
- 1-(5-METHYL-2-THIAZOLYL)-PIPERAZINE (CAS 118113-05-6)
- 2-[(3-carbamoyl-4,5,6-trimethylpyridin-2-yl)sulfanyl]acetic acid (CAS 852218-22-5)
- 4-(Dibutylamino)-N-[4-(dibutylamino)phenyl]-N-[4-(dibutyliminio)-2,5-cyclohexadien-1-ylidene]benzenaminium hexafluoroantimonate(1-) (CAS 197790-29-7)
- 2-((Piperidin-3-ylamino)methyl)benzonitrile hydrochloride (CAS 1353989-83-9)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
Why CATO?
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