Levonorgestrel Impurity 43 CAS 2762739-33-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2762739-33-1 |
| Molecular Formula | C22H34O4 |
| Molecular Weight | 362.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levonorgestrel Impurity 43 (CAS 2762739-33-1) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C22H34O4. Molecular weight: 362.50 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C22H34O4 |
| Molecular Weight | 362.50 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
Related Levonorgestrel Standards
- Levonorgestrel Acetate Delta-5 Impurity (CAS 1175110-92-5)
- Levonorgestrel EP Impurity O (CAS 155683-60-6)
- Levonorgestrel acetate-3-ethyldienol Ether (CAS 55547-52-9)
- Levonorgestrel-3-ethyldienol Ether (CAS 24908-87-0)
- Levonorgestrel Impurity 36 (CAS 2762739-30-8)
- Levonorgestrel Impurity 40 (10R) (CAS CATO-C4X-167740)
- Levonorgestrel Impurity 41 (CAS CATO-C4X-167741)
- Levonorgestrel EP Impurity G (CAS 87585-03-3)
Recommended Standards
- 5a,8-Methano-5aH-cyclohepta[5,6]naphtho[2,1-b]furan-7-methanol,3b,4,5,6,7,8,9,10,10a,10b,11,12-dodecahydro-7-hydroxy-10b-methyl-, 7-acetate,(3bS,5aS,7R,8R,10aR,10bS)- 81760-48-7 CTK5E9078 (CAS 81760-48-7)
- Tiamulin EP Impurity K (CAS 31716-11-7)
- (2e)-5-[(1s,4ar,6s,8ar)-6-acetoxy-5,5,8a-trimethyl-2-methylenedec Ahydro-1-naphthalenyl]-3-methyl-2-pentenoic Acid 63399-37-1 (CAS 63399-37-1)
- Fluvoxamine Impurity 16 (CAS CATO-C4X-195116)
- Vilanterol Impurity 78 (CAS CATO-C4X-193578)
- 5-Methoxy-2-methylindan-1-one (CAS 60848-62-6)
- 3-(7-Methoxy-1h-indol-1-yl)propanoic acid (CAS 1219587-07-1)
- Tolvaptan Impurity 3 (CAS CATO-C4X-19553)
- 1-(3-((Tert-butoxycarbonyl)amino)propyl)-1H-indole-6-carboxylic acid (CAS 1005378-70-0)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
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