Sulpiride impurity 15 CAS 77718-16-2
| CAS No. | 77718-16-2 |
| Molecular Formula | C8H8ClNO4S |
| Molecular Weight | 249.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Sulpiride impurity 15 (CAS 77718-16-2), a pharmacopoeial impurity reference standard (molecular formula C8H8ClNO4S, MW 249.67 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Sulpiride impurity 15 (C8H8ClNO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 249.67 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H8ClNO4S |
| Molecular Weight | 249.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Sulpiride Standards
- Sulpiride Impurity 20 (CAS 94134-07-3)
- Sulpiride Impurity 23 (CAS CATO-C4X-187623)
- Sulpiride EP Impurity B (CAS 33045-52-2)
- Sulpiride EP Impurity C (CAS 33045-53-3)
- Sulpiride Impurity 15 (CAS 51431-45-9)
- Sulpiride Impurity 14 (CAS 191471-91-7)
- Sulpiride Impurity 16 (CAS 34556-95-1)
- Sulpiride EP Impurity D (CAS 22117-85-7)
Recommended Standards
- Diazepam Impurity 8 (CAS 784-38-3)
- Diazoxide Impurity 2 (CAS 54981-41-8)
- Ticagrelor impurity 98 (CAS 1548397-10-9)
- Thiamethoxam Impurity 1 (CAS 131748-59-9)
- Eszopiclone Impurity 27 (CAS 1216659-29-8)
- Atogepant Impurity 70 (CAS CATO-C4X-328570)
- Halometasone impurity 11 (CAS CATO-C4X-144611)
- (1S,3S)-2,2-Dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylic acid (CAS 2259-14-5)
- 4-(Difluoromethyl)-5-methyl-3-(trifluoromethoxy)pyridin-2-ol (CAS 1803939-56-1)
- 3-[5-(morpholine-4-sulfonyl)-1-propyl-1H-1,3-benzodiazol-2-yl]propanoic acid (CAS 731815-69-3)
- 5-Butyl-3-phenyl-4,5-dihydroisoxazole (CAS 1017-09-0)
- 2-Bromo-5-(2-methoxyethoxy)pyridine (CAS 1144110-14-4)
- Methyl 2-bromo-5-cyano-4-hydroxybenzoate (CAS 1807079-69-1)
- SAMS Peptide (CAS 125911-68-4)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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