Ramosetron Impurity 11 CAS 1352491-75-8
| CAS No. | 1352491-75-8 |
| Molecular Formula | C16H17NO5 |
| Molecular Weight | 303.31 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.
CATO supplies Ramosetron Impurity 11 (CAS 1352491-75-8), a pharmacopoeial impurity reference standard (molecular formula C16H17NO5, MW 303.31 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Ramosetron Impurity 11 (C16H17NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 303.31 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Ramosetron Impurity 11 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H17NO5 |
| Molecular Weight | 303.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
Related Ramosetron Standards
- Ramosetron Impurity 24 (CAS CATO-C4X-118224)
- Ramosetron impurity 31 (CAS CATO-C4X-118231)
- Ramosetron Impurity 6 (CAS CATO-C4X-11826)
- Ramosetron Impurity 7 (CAS CATO-C4X-11827)
- Ramosetron Impurity 8 (CAS CATO-C4X-11828)
- Ramosetron Impurity 9 (CAS 171967-72-9)
- Ramosetron Impurity 26 (CAS CATO-C4X-118226)
- Ramosetron Impurity 14 (CAS 171967-71-8)
Recommended Standards
- Neratinib Impurity 44 (CAS 1222172-50-0)
- N-Nitroso Vilazodone Impurity 11 (CAS 2512217-82-0)
- Apixaban Impurity 19 (CAS 503615-03-0)
- Dopamine Impurity 109 (CAS CATO-C4X-1908109)
- Bisacodyl EP Impurity C (CAS 72901-16-7)
- Dotinurad Impurity 75 (CAS 24526-98-5)
- Nilotinib Impurity 36 HCl (CAS CATO-C4X-125636)
- 1-(4-(3-Isopropyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl)-1H-imidazole-4-carboxylic acid (CAS 1338682-70-4)
- Methyl 1-formylindoline-3-carboxylate (CAS 528861-99-6)
- (R)-2-Amino-3-(3-hydroxy-4-methylisoxazol-5-yl)propanoic acid hydrate (CAS 210049-09-5)
- 5-(Chloromethyl)-2-phenyl-1H-imidazole (CAS 57118-89-5)
- Butyl({[1-(4-methoxyphenyl)-2,5-dimethyl-1h-pyrrol-3-yl]methyl})amine (CAS 1243598-50-6)
- 2-Benzyl-9-oxa-2-azaspiro[5.5]undecan-5-one (CAS 1368039-95-5)
- Semaglutide impurity 56 (CAS CATO-C4X-222656)
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