| CAS No. | 61252-35-5 |
| Molecular Formula | C26H46O3Si |
| Molecular Weight | 434.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of (3|A,5|A,6|A,15|A,17|A)-17-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-6-methoxy-3,5-cycloandrostan-15-ol (3|A,5|A,6|A,15|A,17|A)-17-tert-Butyldimethylsilyloxy-6-methoxy-3,5-cycloandrostan-15-ol 61252-35-5 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.
(3|A,5|A,6|A,15|A,17|A)-17-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-6-methoxy-3,5-cycloandrostan-15-ol (3|A,5|A,6|A,15|A,17|A)-17-tert-Butyldimethylsilyloxy-6-methoxy-3,5-cycloandrostan-15-ol 61252-35-5 (CAS 61252-35-5), molecular formula C26H46O3Si and molecular weight 434.73 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3|A,5|A,6|A,15|A,17|A)-17-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-6-methoxy-3,5-cycloandrostan-15-ol (3|A,5|A,6|A,15|A,17|A)-17-tert-Butyldimethylsilyloxy-6-methoxy-3,5-cycloandrostan-15-ol 61252-35-5 (C26H46O3Si) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 434.73 g/mol, it falls into the moderately-high-molecular-weight range. 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.
CATO manufactures (3|A,5|A,6|A,15|A,17|A)-17-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-6-methoxy-3,5-cycloandrostan-15-ol (3|A,5|A,6|A,15|A,17|A)-17-tert-Butyldimethylsilyloxy-6-methoxy-3,5-cycloandrostan-15-ol 61252-35-5 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C26H46O3Si |
| Molecular Weight | 434.73 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |