Ondansetron Impurity 13 CAS 126671-73-6
| CAS No. | 126671-73-6 |
| Molecular Formula | C18H19N3O5S |
| Molecular Weight | 389.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ondansetron Impurity 13.
Ondansetron Impurity 13 (CAS 126671-73-6) is a high-purity analytical reference standard with the molecular formula C18H19N3O5S and a molecular weight of 389.43 g/mol.
Ondansetron Impurity 13 (C18H19N3O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ondansetron Impurity 13 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 | C18H19N3O5S |
| Molecular Weight | 389.43 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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.) | 1993 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ondansetron Standards
- Ondansetron Impurity 13 (CAS 1216890-42-4)
- Ondansetron Impurity 14 (CAS 1365727-07-6)
- Ondansetron Impurity 12 (CAS 1365727-09-8)
- Ondansetron Impurity 11 (CAS CATO-C4X-139411)
- Ondansetron Impurity 16 (CAS CATO-C4X-139416)
- Ondansetron Impurity N47 (CAS 110708-17-3)
- Ondansetron Impurity 23 (CAS CATO-C4X-139423)
- Ondansetron Impurity 24 (CAS CATO-C4X-139424)
Recommended Standards
- (1-ETHYL-5-HYDROXY-1H-PYRAZOL-4-YL)-(3-METHANESULFONYL-2,5-DIMETHYL-4-OXAZOL-2-YL-PHENYL)-METHANONE (CAS 1231603-95-4)
- 4-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)-N-(4-methoxyphenyl)-3-methyl-1H-pyrazole-5-sulfonamide (CAS 1298033-83-6)
- (3-Ethanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-phenyl)-(5-hydroxy-1-methyl-1H-pyrazol-4-yl)-methanone (CAS 1231571-03-1)
- (2R,3R,4S,5S)-2-(6-Amino-9H-purin-9-yl)-5-(((4-methoxyphenyl)thio)methyl)tetrahydrofuran-3,4-diol (CAS 137103-06-1)
- N-(3-methoxyphenyl)-2-phenylacetamide (CAS 50916-19-3)
- (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoic acid (CAS 20290-75-9)
- 5-Chloro-2-methyl-D-phenylalanine (CAS 1269833-11-5)
- 2-Amino-7-(((1,3-dihydroxypropan-2-yl)oxy)methyl)-6-(methylthio)-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carboxamide (CAS 127945-63-5)
- 3-Amino-5-hydroxy-1H-pyrazole-1-carboxamide (CAS 119769-05-0)
- (4-(2-Methyl-1H-imidazol-5-yl)phenyl)methanol (CAS 1365968-91-7)
- Vitamin K1 Impurity 2 (CAS 15576-40-6)
- Isoquinoline-5,6-diamine (CAS 140192-89-8)
- Nintedanib Impurity 21 (CAS CATO-C4X-181421)
- Des-Trp25-Tirzepatide (CAS CATO-CPTD788948)
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