17-Hydroxy Pregnenolone CAS 387-79-1
| CAS No. | 387-79-1 |
| Molecular Formula | C21H32O3 |
| Molecular Weight | 332.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H32O3, 17-Hydroxy Pregnenolone contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 332.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO supplies 17-Hydroxy Pregnenolone (CAS 387-79-1), a certified reference material (molecular formula C21H32O3, MW 332.48 g/mol) for analytical method development and quality control.
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), 17-Hydroxy Pregnenolone 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 | C21H32O3 |
| Molecular Weight | 332.48 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Hydroxy Standards
- 11β-Hydroxy-5α-pregnane-3,20-dione (CAS 565-94-6)
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- (S)-Hydroxy Timolol (CAS 1227468-61-2)
Recommended Standards
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- N1-ethyl-N1-propyl-N2-(thietan-3-yl)ethane-1,2-diamine (CAS 1865153-46-3)
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