| CAS No. | 47904-22-3 |
| Molecular Formula | C42H80O12Si7 |
| Molecular Weight | 973.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of (1R,3r,5S,11S)-1,3,5,7,9,11,14-Heptacyclohexyl-2,4,6,8,10,12,13,15,16-nonaoxa-1,3,5,7,9,11,14-heptasilatricyclo[7.3.3.15,11]hexadecane-3,7,14-triol is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(1R,3r,5S,11S)-1,3,5,7,9,11,14-Heptacyclohexyl-2,4,6,8,10,12,13,15,16-nonaoxa-1,3,5,7,9,11,14-heptasilatricyclo[7.3.3.15,11]hexadecane-3,7,14-triol (CAS 47904-22-3), molecular formula C42H80O12Si7 and molecular weight 973.68 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, (1R,3r,5S,11S)-1,3,5,7,9,11,14-Heptacyclohexyl-2,4,6,8,10,12,13,15,16-nonaoxa-1,3,5,7,9,11,14-heptasilatricyclo[7.3.3.15,11]hexadecane-3,7,14-triol is typically white to off-white amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 973.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
| Molecular Formula | C42H80O12Si7 |
| Molecular Weight | 973.68 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1970 |