4-PREGNEN-1α, 11β, 21-TRIOL-3, 20-DIONE CAS 10163-49-2
| CAS No. | 10163-49-2 |
| Molecular Formula | C21H30O5 |
| Molecular Weight | 362.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-PREGNEN-1α, 11β, 21-TRIOL-3, 20-DIONE.
4-PREGNEN-1α, 11β, 21-TRIOL-3, 20-DIONE (CAS 10163-49-2) is a high-purity analytical reference standard with the molecular formula C21H30O5 and a molecular weight of 362.46 g/mol.
4-PREGNEN-1α, 11β, 21-TRIOL-3, 20-DIONE (C21H30O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 4-PREGNEN-1α, 11β, 21-TRIOL-3, 20-DIONE meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H30O5 |
| Molecular Weight | 362.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Related PREGNEN Standards
- 4-PREGNEN-17, 19, 21-TRIOL-3, 20-DIONE (CAS 510-65-6)
- 4-PREGNEN-17, 20α, 21-TRIOL-3, 11-DIONE (CAS 566-38-1)
- 5-PREGNEN-6-METHYL-3β-OL-20-ONE ACETATE (CAS 6222-82-8)
- 5-PREGNEN-3β, 11β, 17, 20β-TETROL (CAS 19516-75-7)
- 5-PREGNEN-3β, 17-DIOL-20-ONE 3-ACETATE (CAS 41906-06-3)
- 4-PREGNEN-17, 20β, 21-TRIOL-3-ONE (CAS 128-19-8)
- 4-PREGNEN-17, 20α, 21-TRIOL-3-ONE (CAS 3946-10-9)
- 4-PREGNEN-6β, 21-DIOL-3, 20-DIONE (CAS 298-65-7)
Recommended Standards
- (4-(1,2,2-Triphenylvinyl)phenyl)methanol (CAS 1015082-83-3)
- 4-Benzyl-1-(2,2-dimethyltetrahydro-2H-pyran-4-yl)-3-phenyl-1H-pyrazol-5(4H)-one (CAS 102689-16-7)
- trans-1-Benzyl-3-Boc-amino-piperidine-4-carboxylic acid ethyl ester (CAS 1006611-33-1)
- 4,4′-Methylenebis(2,6-diethylphenyl isocyanate) (CAS 105442-35-1)
- N~1~-Butyl-2-chloro-N~1~-methyl-1,4-benzenediamine (CAS 1019115-86-6)
- pyrazolo[1,5-a]pyridin-4-ol (CAS 141032-72-6)
- 4-Methoxy-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid (CAS 1638760-96-9)
- (2-Amino-5-methylphenyl)-phenylmethanone (CAS 17852-28-7)
- 4,5,6,7-Tetrahydro-2H-isoindole-1-carboxylic acid (CAS 204068-75-7)
- (5-Bromo-2-fluorophenyl)methanamine (CAS 190656-34-9)
- 1-(5-Aminopyridin-2-yl)-3-(methoxymethyl)-4,5-dihydro-1h-pyrazol-5-one (CAS 1249072-71-6)
- Tert-butyl 4-(4-nitrobenzyl)piperazine-1-carboxylate (CAS 130636-61-2)
- (Z)-3-(Hydroxyimino)butan-2-one (CAS 110828-81-4)
- Galanin Message Associated Peptide (44-59) amide (CAS 125455-59-6)
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 18665070610 / Nicole.chen@cato-chem.com