Levonorgestrel EP Impurity C CAS 1337972-89-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1337972-89-0 |
| Molecular Formula | C23H28O |
| Molecular Weight | 320.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levonorgestrel EP Impurity C (CAS 1337972-89-0) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C23H28O. Molecular weight: 320.47 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C23H28O |
| Molecular Weight | 320.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Levonorgestrel Standards
- Levonorgestrel-d7 (CAS CATO-C4X-167725)
- Levonorgestrel-d6 (CAS 2376035-98-0)
- Levonorgestrel Impurity 38 (CAS 2762739-32-0)
- Levonorgestrel EP Impurity V (CAS 14009-70-2)
- Levonorgestrel EP Impurity J (CAS 1175109-63-3)
- Levonorgestrel EP Impurity S (CAS 176254-10-7)
- Levonorgestrel EP Impurity T (CAS 14507-51-8)
- Levonorgestrel EP Impurity T (CAS 799-43-9)
Recommended Standards
- (5Z,8S,9E,11Z,14Z)-8-hydroxyeicosa-5,9,11,14-tetraenoic acid (5Z,8S,9E,11Z,14Z)-8-hydroxyicosa-5,9,11,14-tetraenoic acid (5Z,9E,11Z,14Z)-(8S)-8-Hydroxyicosa-5,9,11,14-tetraenoic acid (5Z,9E,11Z,14Z)-(8S)-8-hydroxyeicosa-5,9,11,14-tetraenoic acid (8S)-hydroxy-(5Z),(9E),(11Z),(14Z)-eicosatetraenoic acid (S)-(Z,E,Z,Z)-8-hydroxyeicosa-5,9,11,14-tetraenoic acid 8(S)-HETE 8(S)-hydroxyeicosatetraenoic acid 8S-HETE 98462-03-4 CHEBI:34486 (CAS 98462-03-4)
- Mutilin (Tiamulin EP Impurity A) (CAS 6040-37-5)
- 963-16-6 Benzene, 1,1'-[(1E)-1,2-ethenediylbis(sulfonyl)]bis- (CAS 963-16-6)
- Tinidazole Impurity 17 (CAS CATO-C4X-193017)
- Sitagliptin Impurity 28 (CAS 486460-00-8)
- Ethyl 1-benzhydrylazetidine-3-carboxylate (CAS 887591-82-4)
- 2-(1-Aminocyclohexyl)-6-ethylpyrimidin-4(3H)-one hydrochloride (CAS 1333823-14-5)
- 2-Butyloctanoyl chloride (CAS 100246-69-3)
- (Perfluoro-1,4-phenylene)dimethanamine acetate (CAS 1841081-54-6)
- endo-Gly31-Semaglutide (CAS CATO-C4X-2226282)
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