4-PREGNEN-11β, 21-DIOL-3, 18, 20-TRIONE 18, 21-DIACETATE CAS 3329-79-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3329-79-1 |
| Molecular Formula | C25H32O7 |
| Molecular Weight | 444.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 4-PREGNEN-11β, 21-DIOL-3, 18, 20-TRIONE 18, 21-DIACETATE (CAS 3329-79-1) pharmaceutical standards reference standard. Molecular formula: C25H32O7. Molecular weight: 444.52 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C25H32O7 |
| Molecular Weight | 444.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1957 |
Related PREGNEN Standards
- 4-PREGNEN-11β, 21-DIOL-3, 20-DIONE 21-HEMISUCCINATE (CAS 10215-77-7)
- 4-PREGNEN-11β, 17, 21-TRIOL-3, 20-DIONE 3-O-CARBOXYMETHYLOXIME (CAS 43188-86-9)
- 4-PREGNEN-11β, 21-DIOL-3, 18, 20-TRIONE 21-HEMISUCCINATE (CAS 52910-82-4)
- 5-PREGNEN-3β, 17-DIOL-20-ONE DIACETATE (CAS 1176-21-2)
- 5-PREGNEN-3β, 21-DIOL-20-ONE DIACETATE (CAS 1693-63-6)
- 5-PREGNEN-3β, 20α-DIOL DIACETATE (CAS 1913-47-9)
- 4-PREGNEN-11β, 21-DIOL-3, 18, 20-TRIONE 21-ACETATE (CAS 297-91-6)
- 5-PREGNEN-16, 17-EPOXY-3β, 21-DIOL-20-ONE 21-ACETATE (CAS 28444-97-5)
Recommended Standards
- 4-Methyl-8-phenoxy-1-(4-phenoxyphenyl)-1H,2H,3H-pyrrolo[3,2-c]quinoline (CAS 865658-30-6)
- Methyl 5-((4-ethoxyphenyl)carbamoyl)-4-methyl-2-(thiophene-2-carboxamido)thiophene-3-carboxylate (CAS 506416-62-2)
- 4-Methyl-6-phenoxy-1-(4-phenoxyphenyl)-2,3-dihydro-1H-pyrrolo[3,2-c]quinoline (CAS 866137-63-5)
- 5-(Methylamino)pent-3-yn-1-ol (CAS 1416439-62-7)
- 2-Methyl-2-(3-methylphenyl)propanoic acid (CAS 93351-25-8)
- n-[(1,3-dimethyl-1h-pyrazol-4-yl)methylidene]hydroxylamine (CAS 380583-07-3)
- Methyl 2-(4-oxoquinolin-1(4H)-yl)acetate (CAS 91538-63-5)
- 2-Cyclopropyl-7-fluoroquinoline-4-carboxylic Acid (CAS 923751-96-6)
- n1-Cyclopentyl-n4,n4-dimethylbenzene-1,4-diamine (CAS 227017-83-6)
- Semaglutide impurity 203 (CAS CATO-C4X-2226203)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com