Olopatadine Impurity 74 CAS 2519517-78-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2519517-78-1 |
| Molecular Formula | C20H21NO2 HCl |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Olopatadine Impurity 74 (CAS 2519517-78-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H21NO2 HCl. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H21NO2 HCl |
| Molecular Weight | 343.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Cl-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
- Brinzolamide Impurity 18 (CAS 160982-13-8)
- Glutathione Impurity 14 (CAS CATO-C4X-118514)
- Fmoc-Sar-OPfp (CAS 159631-29-5)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2,5-dichlorophenyl)butanoic acid (CAS 1260592-96-8)
- 2,5-Dihydro-1H-pyrazol-3-amine hydrochloride (CAS 60777-00-6)
- (S)-2-amino-3-(3-cyanophenyl)propanoic acid hydrochloride (CAS 144799-02-0)
- 30003-72-6 insulin chain b oxidized (CAS 30003-72-6)
Why CATO?
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