Olopatadine Impurity 22 CAS 4174-84-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 4174-84-9 |
| Molecular Formula | C21H23NP HBr Br |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Olopatadine Impurity 22 (CAS 4174-84-9), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H23NP HBr Br. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H23NP HBr Br |
| Molecular Weight | 481.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| 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
- Sovateltide Impurity 2 (CAS CATO-C4X-34652)
- Bedaquiline Impurity 20 (CAS CATO-C4X-116720)
- 4-Methoxybenzyl (E)-(2-(furan-2-yl)vinyl)carbamate (CAS 338399-75-0)
- 3-Bromo-3',3''-difluorotrityl alcohol (CAS 845790-82-1)
- 4-(Benzo[d]thiazol-2-yl)-1-(4-fluorophenyl)-1H-1,2,3-triazol-5-amine (CAS 1032226-33-7)
- Ethyl 6-(methylamino)hexanoate hydrochloride (CAS 65498-93-3)
- Fibrinopeptide A (human) (CAS 25422-31-5)
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 13829788188 / jacky.chen@cato-chem.com