Levonorgestrel EP Impurity I (CAS 20402-62-4) — formula C21H28O3, molecular weight 328.4; category pharmaceutical intermediates and APIs.
Levonorgestrel EP Impurity I (CAS 20402-62-4) is a chemical raw material in the pharmaceutical intermediates and APIs category. Its molecular formula C21H28O3 comprises 21 C, 28 H, 3 O atoms. Its molecular weight is about 328.4. Reported physicochemical data: LogP about 1.8. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 20402-62-4 |
|---|---|
| Molecular Formula | C21H28O3 |
| Molecular Weight | 328.4 |
| LogP | 1.8 |
| Category | Pharmaceutical Intermediates & APIs |
Levonorgestrel EP Impurity I is a pharmaceutical intermediate or API compound with CAS registry number 20402-62-4 and molecular formula C21H28O3 (molecular weight 328.4), belonging to the pharmaceutical intermediates and APIs segment of chemical raw materials.
CAS number: 20402-62-4
Its molecular formula C21H28O3 comprises 21 C, 28 H, 3 O atoms.
Also known as: Levonorgestrel EP Impurity I · 左炔诺孕酮
Category: pharmaceutical intermediates and APIs
The CAS registry number of Levonorgestrel EP Impurity I is 20402-62-4.
Molecular formula C21H28O3, molecular weight 328.4.
It is also registered under: Levonorgestrel EP Impurity I, 左炔诺孕酮.
Category: Pharmaceutical Intermediates & APIs.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Levonorgestrel EP Impurity I (CAS 20402-62-4), compiled from public chemistry databases.
| CAS Number | 20402-62-4 |
|---|---|
| PubChem CID | 71748888 |
| Molecular Formula | C21H28O3 |
| IUPAC Name | (8S,9S,10S,13S,14S,17R)-13-ethyl-17-ethynyl-10,17-dihydroxy-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one |
| UNII (FDA) | M8ZTL23HWP |
| Molecular Weight | 328.4 |
|---|---|
| XLogP3 | 1.8 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 2 |
| Exact Mass | 328.20384475 |
| Monoisotopic Mass | 328.20384475 |
| Topological Polar Surface Area | 57.5 |
| Heavy Atom Count | 24 |
21508-50-9; Levonorgestrel EP Impurity I; 10-Hydroxylevonorgestrel; M8ZTL23HWP; 10beta-hydroxylevonorgestrel; 20402-62-4; UNII-M8ZTL23HWP; 10-Hydroxylevonorgestrel [EP]; Levonorgestrel impurity I [EP]; 10beta-Hydroxy D-(-)-Norgestrel; 13-Ethyl-10,17-dihydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one; 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-10,17-dihydroxy-, (17alpha)-; 6beta-Deshydroxy-10beta-hydroxylevonorgestrel; 10|A-Hydroxy D-(-)-Norgestrel; 10?-Hydroxy D-(-)-norgestrel; Levonorgestrel Impurity 20
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 左炔诺孕酮