17a(H),21B(H)-(22RS)-Pentakishomohopane CAS 54370-82-0
| CAS No. | 54370-82-0 |
| Molecular Formula | C35H62 |
| Molecular Weight | 482.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 17a(H),21B(H)-(22RS)-Pentakishomohopane.
17a(H),21B(H)-(22RS)-Pentakishomohopane (CAS 54370-82-0) is a high-purity analytical reference standard with the molecular formula C35H62 and a molecular weight of 482.87 g/mol.
The molecular framework of 17a(H),21B(H)-(22RS)-Pentakishomohopane (C35H62) 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.
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), 17a(H),21B(H)-(22RS)-Pentakishomohopane 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 | C35H62 |
| Molecular Weight | 482.87 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.) | 1972 |
Recommended Standards
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- (S)-2-(4-chloro-3,5-difluorophenyl)pyrrolidine (CAS 1212832-34-2)
- Indisetron Impurity 2 (CAS CATO-C4X-12512)
- 3-Chloro-N-(2-((4-chlorophenyl)thio)ethyl)propanamide (CAS 92546-78-6)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)but-2-enoic acid (CAS 198545-98-1)
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