5α-Androst-9(11)-ene-3,17-dione CAS 15375-19-6
| CAS No. | 15375-19-6 |
| Molecular Formula | C19H26O2 |
| Molecular Weight | 286.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5α-Androst-9(11)-ene-3,17-dione is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5α-Androst-9(11)-ene-3,17-dione (CAS 15375-19-6), molecular formula C19H26O2 and molecular weight 286.41 g/mol, is a CATO reference standard with documented purity and traceability.
5α-Androst-9(11)-ene-3,17-dione (C19H26O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5α-Androst-9(11)-ene-3,17-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 | C19H26O2 |
| Molecular Weight | 286.41 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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.) | 1961 |
Related Androst Standards
- 5α-Androst-15-ene-3,17-dione (CAS 127380-69-2)
- 5alpha-Androst-8(14)-ene-3,17-dione (CAS 17305-45-2)
- 13α-Androst-4-ene-3,17-dione (CAS 18485-76-2)
- 5β-Androst-1-ene-3,17-dione (CAS 571-39-1)
- 2-Methyl-5α-androst-2-en-17-one (CAS 32300-87-1)
- 5B-Androst-1-en-17B-ol-3-one (CAS 10529-96-1)
- 5α-Androst-1-ene-3α-ol-17-one (available to WADA laboratories only) (CAS 38859-37-9)
- 2-Methyl-5α-androst-2-en-17β-ol (CAS 2984-17-0)
Recommended Standards
- Methyldienolone (CAS 14531-89-6)
- 3-Methyl-1-(2-octylphenyl)-1H-pyrazol-5(4H)-one (CAS 142199-91-5)
- 3β-Hydroxyandrosta-5,15-dien-17-one (CAS 17921-63-0)
- Dipentyl adipate (CAS 14027-78-2)
- 1,1,1-Trifluoro-hexan-2-one (CAS 360-34-9)
- 4-(Difluoromethyl)-5-iodo-2-methoxypyridine-3-sulfonamide (CAS 1805533-96-3)
- 471909-43-0 N-[(E)-(4-Chloropyridin-3-yl)methylidene]hydroxylamine DTXSID80623170 (CAS 471909-43-0)
- 1-(6-Chloro-4-(trifluoromethyl)pyridin-2-yl)ethan-1-one (CAS 1256836-55-1)
- 2-(But-3-en-1-yloxy)acetic acid (CAS 95123-53-8)
- 2-Hydroxy-4-(methylthio)butyric Acid (65-72% in Water) (CAS 583-91-5)
- (2E)-3-{[(4-methylphenyl)methyl]amino}-N-[3-(trifluoromethyl)phenyl]but-2-enamide (CAS 338748-79-1)
- 7-(Trifluoromethyl)quinazolin-4-ol (CAS 16499-58-4)
- 6,7-Dihydro-5H-cyclopenta[d]pyrimidine-4-carboxylic acid (CAS 1083396-50-2)
- Semaglutide Impurity 152 xTFA (CAS CATO-C4X-2226152)
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