Olopatadine USP Related Compound C CAS 55453-87-7
| CAS No. | 55453-87-7 |
| Molecular Formula | C16H12O4 |
| Molecular Weight | 268.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Olopatadine USP Related Compound C (CAS 55453-87-7), a certified reference material (molecular formula C16H12O4, MW 268.26 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, Olopatadine USP Related Compound C is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 268.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C16H12O4 |
| Molecular Weight | 268.26 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.) | 1972 |
Related Olopatadine Standards
- Olopatadine Impurity 12 (CAS 66801-40-9)
- Olopatadine Impurity 37 (CAS 55689-64-0)
- Olopatadine Impurity 25 (CAS 88630-37-9)
- Olopatadine lmpurity 57 (CAS CATO-C4X-171857)
- Olopatadine Impurity 28 (CAS 55453-89-9)
- Olopatadine Impurity 20 (CAS 962-95-8)
- Olopatadine lmpurity 58 (CAS CATO-C4X-171858)
- Olopatadine Impurity 35 (CAS 89019-82-9)
Recommended Standards
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- Sizofiran (CAS 9050-67-3)
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- Methyl piperazine-1-carbodithioate (CAS 111277-66-8)
- 6-Hydroxy-6-(2-nitrophenyl)hexanoic Acid (CAS 198065-04-2)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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