Bimatoprost Impurity 2 CAS 41639-74-1
| CAS No. | 41639-74-1 |
| Molecular Formula | C18H22O4 |
| Molecular Weight | 302.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Bimatoprost Impurity 2 (CAS 41639-74-1), molecular formula C18H22O4 and molecular weight 302.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Bimatoprost Impurity 2 (C18H22O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C18H22O4 |
| Molecular Weight | 302.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
Related Bimatoprost Standards
- Bimatoprost Impurity 21 (CAS 856240-62-5)
- Bimatoprost Impurity 25 (CAS 146964-27-4)
- Bimatoprost Impurity 11 (CAS CATO-C4X-196411)
- Bimatoprost Impurity 16 (CAS 144358-71-4)
- Bimatoprost Impurity M (CAS 41162-19-0)
- Bimatoprost Impurity 12 (CAS CATO-C4X-196412)
- Bimatoprost Acid (CAS 38344-08-0)
- Bimatoprost Impurity 19 (CAS 41639-71-8)
Recommended Standards
- 6-Oxo Estriol (CAS 7323-86-6)
- Dapagliflozin Impurity 89 (CAS 5032-10-0)
- 6,8-Di-tert-butyl-4-oxo-4H-chromene-2-carboxylic acid (CAS 37456-21-6)
- Diethyl 2-(5-acetoxypentyl)-2-methylmalonate (CAS 54131-72-5)
- (3R,5R,6S,7S,9R,13R,14R,E)-14-Ethyl-6-hydroxy-3,5,7,9,13-pentamethyloxacyclotetradec-11-ene-2,4,10-trione (CAS 32885-75-9)
- 2-((3-Methoxypropyl)amino)nicotinonitrile (CAS 945298-39-5)
- 2-((4-Bromophenyl)thio)-5-(trifluoromethyl)benzonitrile (CAS 477867-11-1)
- H-Val-Leu-OH · HCl (CAS 95977-55-2)
- 2-Chloro-n-(2-cyanoethyl)-n-(4-methylphenyl)propanamide (CAS 1210020-81-7)
- 5-Bromo-1-hydrazinylisoquinoline (CAS 34551-40-1)
- Axitinib Impurity 85 (CAS 13959-26-7)
- 5-Amino-4-(1H-benzo[d]imidazol-2-yl)-1-(3,4-dimethoxyphenethyl)-1,2-dihydro-3H-pyrrol-3-one (CAS 213251-03-7)
- (3-Amino-[1,1'-biphenyl]-2-yl)methanol (CAS 1379316-70-7)
- Cyclolinopeptide B (CAS 193139-41-2)
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