4-PREGNEN-11β, 21-DIOL-3, 18, 20-TRIONE 21-ACETATE CAS 297-91-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 297-91-6 |
| Molecular Formula | C23H30O6 |
| Molecular Weight | 402.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-PREGNEN-11β, 21-DIOL-3, 18, 20-TRIONE 21-ACETATE (CAS 297-91-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C23H30O6. Molecular weight: 402.48 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C23H30O6 |
| Molecular Weight | 402.48 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related PREGNEN Standards
- 5-PREGNEN-3β, 20α-DIOL DIACETATE (CAS 1913-47-9)
- 5-PREGNEN-16, 17-EPOXY-3β, 21-DIOL-20-ONE 21-ACETATE (CAS 28444-97-5)
- 5-PREGNEN-3β, 17-DIOL-20-ONE DIACETATE (CAS 1176-21-2)
- 5-PREGNEN-3β, 21-DIOL-20-ONE DIACETATE (CAS 1693-63-6)
- 4-PREGNEN-3, 20-DIONE 3-O-CARBOXYMETHYLOXIME-(NH)-CH)10-(NH)-BIOTIN (CAS 50909-89-2)
- 5-PREGNEN-16-METHYLENE-3β, 17-DIOL-20-ONE 3-ACETATE (CAS 15369-66-1)
- 5-PREGNEN-3β, 17-DIOL-20-ONE 3-ACETATE (CAS 41906-06-3)
- 5-PREGNEN-6-METHYL-3β-OL-20-ONE ACETATE (CAS 6222-82-8)
Recommended Standards
- 3,6-Dimethyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 4919-13-5)
- 6-Dehydrocortisol Acetate (CAS 21940-45-4)
- 11a-Hydroxy-3,17-Dioxo-Androsten-(4)-Hydrogensuccinat (CAS 5615-45-2)
- 1-(3-Aminophenyl)cyclopropanol (CAS 1448347-98-5)
- Acetylcysteine Impurity 4 (CAS 210354-22-6)
- 9-epi-Cinchonidine (CAS 550-54-9)
- Methyl 2,3-dibromo-5,6-difluorophenylacetate (CAS 1806326-49-7)
- 6,8-Di-tert-butyl-4-oxo-4H-chromene-2-carboxylic acid (CAS 37456-21-6)
- 1-[5-(2,2,2-Trichloroacetyl)-1H-pyrrol-3-yl]-1-butanone (CAS 111468-91-8)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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