Levonorgestrel Impurity N1 CAS 7443-72-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 7443-72-3 |
| Molecular Formula | C20H26O2 |
| Molecular Weight | 298.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levonorgestrel Impurity N1 (CAS 7443-72-3) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C20H26O2. Molecular weight: 298.42 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C20H26O2 |
| Molecular Weight | 298.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Related Levonorgestrel Standards
- Levonorgestrel Impurity 4 (Ethylmetrienone) (CAS 848-04-4)
- Levonorgestrel EP Impurity D (CAS 32419-58-2)
- Levonorgestrel EP Impurity R (CAS 2322-77-2)
- Levonorgestrel EP Impurity Q (CAS 14507-49-4)
- Levonorgestrel EP Impurity W (CAS 155683-59-3)
- Levonorgestrel Impurity 33 (CAS 93798-38-0)
- Levonorgestrel EP Impurity K (CAS 793-55-5)
- Levonorgestrel EP Impurity A (CAS 1260525-53-8)
Recommended Standards
- Etonogestrel EP Impurity D (CAS 54024-17-8)
- Ethyl 2-(3-methylthioureido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 51486-13-6)
- N,N-Diisopropyl-4-isothiocyanatobenzenesulfonamide (CAS 956576-76-4)
- Vortioxetine Impurity 111 (CAS 640767-44-8)
- Solriamfetol Impurity 23 (CAS CATO-C4X-256323)
- 4-(2-Methoxy-phenylcarbamoyl)-butyric acid (CAS 401629-34-3)
- Methyl 6,8-dibromo-2H-chromene-3-carboxylate (CAS 177496-81-0)
- tert-Butyl (3-carbamothioylbicyclo[1.1.1]pentan-1-yl)carbamate (CAS 2690365-97-8)
- 1H,1H,7H-Perfluoroheptan-1-ol (CAS 335-99-9)
- Insulin Degludec Impurity 9 (CAS CATO-C4X-21579)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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