Olopatadine Impurity 25 CAS 18355-96-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 18355-96-9 |
| Molecular Formula | C23H27NP Br |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Olopatadine Impurity 25 (CAS 18355-96-9) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C23H27NP Br. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C23H27NP Br |
| Molecular Weight | 428.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Olopatadine Standards
- Olopatadine Impurity 44 (CAS 111088-69-8)
- Olopatadine Impurity 43 (CAS 1127893-02-0)
- Olopatadine Methyl Ester HCl (CAS 113805-71-3（free base）)
- Olopatadine Impurity 51 (CAS 113806-01-2)
- Olopatadine Ethyl Ester (HCl) (CAS 113806-03-4)
- Olopatadine (CAS 113806-05-6)
- (E)-Olopatadine (CAS 113806-06-7)
- Olopatadine Impurity N3 (CAS 113835-76-0)
Recommended Standards
- Cimetidine EP Impurity H (CAS 74886-59-2)
- Amorolfine EP Impurity H HCl (CAS CATO-C4X-15429)
- 4,4-Dimethyl-2-(2-methylbenzyl)isoxazolidin-3-one (CAS 81777-92-6)
- 4,6-Dimethoxy-3-(3-nitrophenyl)benzofuran (CAS 922140-78-1)
- 5-(1-(Methylthio)ethyl)-1,3,4-thiadiazol-2-amine (CAS 383130-64-1)
- 188928-11-2 2-[4-(3,4-Dichlorobenzyloxy)phenyl]ethyl Alcohol 2-[4-(3,4-Dichlorobenzyloxy)phenylethanol 4-[(3,4-dichlorophenyl)methoxy]benzeneethanol (CAS 188928-11-2)
- D-[His]1-Semaglutide X TFA salt (CAS CATO-CPTD788634)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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