17a(H),21a(H)-(22RS)-Bishomohopane CAS 105498-25-7
| CAS No. | 105498-25-7 |
| Molecular Formula | C32H56 |
| Molecular Weight | 440.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 17a(H),21a(H)-(22RS)-Bishomohopane is closely related to an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
17a(H),21a(H)-(22RS)-Bishomohopane (CAS 105498-25-7) is a high-purity analytical reference standard with the molecular formula C32H56 and a molecular weight of 440.79 g/mol.
The molecular framework of 17a(H),21a(H)-(22RS)-Bishomohopane (C32H56) is characterized by an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C32H56 |
| Molecular Weight | 440.79 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Recommended Standards
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