5-ANDROSTEN-3β-OL-16, 17-DIONE CAS 571-05-1
| CAS No. | 571-05-1 |
| Molecular Formula | C19H26O3 |
| Molecular Weight | 302.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-ANDROSTEN-3β-OL-16, 17-DIONE (CAS 571-05-1), molecular formula C19H26O3 and molecular weight 302.41 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, 5-ANDROSTEN-3β-OL-16, 17-DIONE is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 302.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 5-ANDROSTEN-3β-OL-16, 17-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 | C19H26O3 |
| Molecular Weight | 302.41 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1957 |
Related ANDROSTEN Standards
- 5-ANDROSTEN-3β-OL-11, 17-DIONE (CAS 17520-02-4)
- 4-ANDROSTEN-17β-OL-3, 16-DIONE (CAS 6132-10-1)
- 5-ANDROSTEN-3β-OL-17-ONE OXIME (CAS 2830-48-0)
- 5-ANDROSTEN-3β, 17β-DIOL-16-ONE (CAS 1159-66-6)
- 4-ANDROSTEN-3β, 17β-DIOL-11-ONE (CAS 14485-67-7)
- 4-ANDROSTEN-17β, 18-DIOL-3-ONE (CAS 7150-17-6)
- 4-ANDROSTEN-4, 17β-DIOL-3-ONE (CAS 2141-17-5)
- 4-ANDROSTEN-7α, 17β-DIOL-3-ONE (CAS 62-83-9)
Recommended Standards
- 5,8-Dimethoxy-2-methyl-N,N-dipropylquinolin-4-amine (CAS 66890-16-2)
- 5-Phenyl-3-(propan-2-yl)-2-sulfanyl-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 885525-67-7)
- 5,6-Dimethyl-3-(4-methylphenyl)-2-sulfanylthieno[2,3-d]pyrimidin-4(3h)-one (CAS 59898-65-6)
- 5α-ANDROSTAN-3, 6, 17-TRIONE (CAS 2243-05-2)
- 2-(4,4-Difluoropiperidin-1-yl)acetic acid (CAS 1627998-04-2)
- 3-(5-amino-1,3,4-thiadiaZol-2-yl)benzonitrile (CAS 1019575-49-5)
- 2-Bromo-4-methylphenyl isothiocyanate (CAS 19241-39-5)
- (3Z)-N-(3,4-Dichlorophenyl)-3-{[(2,6-dichlorophenyl)methoxy]imino}propanamide (CAS 477851-52-8)
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- Methyl 4-bromo-7-ethoxy-6-methoxy-1H-indole-2-carboxylate (CAS 881041-76-5)
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- 4-Cyclopropoxy-2,5-diethylpyridine (CAS 1243474-54-5)
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