| CAS No. | 913388-71-3 |
| Molecular Formula | C26H43BN2O5Si |
| Molecular Weight | 502.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
1H-Indole-1-carboxylic acid, 2-borono-5-[[4-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-1-piperidinyl]methyl]-, 1-(1,1-dimethylethyl) ester (CAS 913388-71-3), molecular formula C26H43BN2O5Si and molecular weight 502.53 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 1H-Indole-1-carboxylic acid, 2-borono-5-[[4-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-1-piperidinyl]methyl]-, 1-(1,1-dimethylethyl) ester is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 502.53 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 | C26H43BN2O5Si |
| Molecular Weight | 502.53 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |