Olopatadine Impurity 30 CAS 728-97-2
| CAS No. | 728-97-2 |
| Molecular Formula | C15H14O3 |
| Molecular Weight | 242.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Olopatadine Impurity 30 (CAS 728-97-2, C15H14O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Olopatadine Impurity 30 (C15H14O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Olopatadine Impurity 30 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 | C15H14O3 |
| Molecular Weight | 242.27 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Olopatadine Standards
- Olopatadine Impurity 35 (CAS 89019-82-9)
- Olopatadine impurity 147 (CAS CATO-C4X-1135147)
- Olopatadine lmpurity 57 (CAS CATO-C4X-171857)
- Olopatadine Impurity 12 (CAS 66801-40-9)
- Olopatadine Impurity 46 (CAS 23560-66-9)
- Olopatadine USP Related Compound C (CAS 55453-87-7)
- Olopatadine Impurity 37 (CAS 55689-64-0)
- Olopatadine Impurity 25 (CAS 88630-37-9)
Recommended Standards
- Imipenem Impurity 12 (CAS CATO-C4X-166212)
- Oseltamivir Impurity 77 (CAS 136994-78-0)
- Ketoprofen Impurity 35 (CAS 108315-48-6)
- Ozagrel Impurity 2 (CAS 866157-50-8)
- Irbesartan Impurity 25 (CAS 151257-01-1)
- Urapidil Impurity 33 (CAS 39615-79-7)
- Ceftolozane Impurity 20 (CAS CATO-C4X-240620)
- Tert-butyl 4-chloro-3-nitrobenzoate (CAS 157160-99-1)
- N-(3,5-dichlorophenyl)-1-((3-(trifluoromethyl)phenyl)sulfonyl)pyrrolidine-2-carboxamide (CAS 317822-01-8)
- 4-Formyl-2-methoxyphenyl Methanesulfonate (CAS 52200-05-2)
- N-(1-Piperidin-4-ylmethyl-1H-pyrazol-4-yl)-acetamide dihydrochloride (CAS 1361114-77-3)
- (R)-2-amino-2-methylhexanoic acid (CAS 105815-95-0)
- 4-Bromo-2-(difluoromethyl)-3-iodopyridine-5-carbonyl chloride (CAS 1807027-65-1)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
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