Travoprost Impurity 7 CAS 39746-00-4
| CAS No. | 39746-00-4 |
| Molecular Formula | C15H16O5 |
| Molecular Weight | 276.28 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 Travoprost Impurity 7 (CAS 39746-00-4), a pharmacopoeial impurity reference standard (molecular formula C15H16O5, MW 276.28 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Travoprost Impurity 7 (C15H16O5) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C15H16O5 |
| Molecular Weight | 276.28 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
Related Travoprost Standards
- Travoprost Impurity 10 (CAS 2218532-66-0)
- Travoprost Impurity 51 (CAS CATO-C4X-192551)
- Travoprost Impurity 53 (CAS CATO-C4X-192553)
- Travoprost Impurity 12 (CAS 39746-01-5)
- Travoprost Impurity 11 (CAS 228729-54-2)
- Travoprost Impurity 59 (CAS CATO-C4X-192559)
- Travoprost Impurity 9 (CAS 22897-99-0)
- Travoprost Impurity 14 (CAS 54094-19-8)
Recommended Standards
- Phloroglucinol Impurity 39 (CAS CATO-C4X-221739)
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- Fosfomycin Impurity 60 (CAS 135578-84-6)
- Amodiaquine Impurity 10 (CAS CATO-C4X-247110)
- Lumateperone Impurity 49 (CAS CATO-C4X-220149)
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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