(S)-Indobufen CAS 118289-97-7
| CAS No. | 118289-97-7 |
| Molecular Formula | C18H17NO3 |
| Molecular Weight | 295.33 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 (S)-Indobufen.
(S)-Indobufen (CAS 118289-97-7), molecular formula C18H17NO3 and molecular weight 295.33 g/mol, is a CATO reference standard with documented purity and traceability.
(S)-Indobufen (C18H17NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures (S)-Indobufen 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 | C18H17NO3 |
| Molecular Weight | 295.33 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related S Standards
- Indobufen (CAS 63610-08-2)
- (R)-Indobufen (CAS 131484-83-8)
- Indobufen Impurity 31 (CAS CATO-C4X-179231)
- Indobufen impurity 78 (CAS CATO-C4X-179278)
- Indobufen Impurity 82 (CAS CATO-C4X-179282)
- Indobufen Impurity 25 (CAS CATO-C4X-179225)
- Indobufen Impurity 12 (CAS CATO-C4X-179212)
- Indobufen Impurity 6 (CAS 3087670-52-5)
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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