17B(H),21a(H)-(22S)-Tetrakishomohopane CAS 79897-70-4
| CAS No. | 79897-70-4 |
| Molecular Formula | C34H60 |
| Molecular Weight | 468.84 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 17B(H),21a(H)-(22S)-Tetrakishomohopane.
CATO supplies 17B(H),21a(H)-(22S)-Tetrakishomohopane (CAS 79897-70-4), a certified reference material (molecular formula C34H60, MW 468.84 g/mol) for analytical method development and quality control.
The molecular framework of 17B(H),21a(H)-(22S)-Tetrakishomohopane (C34H60) 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.
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 | C34H60 |
| Molecular Weight | 468.84 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.) | 1979 |
Recommended Standards
- 17B(H),21a(H)-(22R)-Tetrakishomohopane (CAS 79951-54-5)
- N4-(6-Chloro-2-methoxyacridin-9-yl)-N1,N1-bis(2-chloroethyl)pentane-1,4-diamine (CAS 64046-79-3)
- 17a(H),21B(H)-(22S)-Tetrakishomohopane (CAS 67069-13-0)
- 3-{[(4-bromophenyl)methyl]sulfanyl}-5-({[(4-chlorophenyl)methyl]sulfanyl}methyl)-4-ethyl-4H-1,2,4-triazole (CAS 344268-63-9)
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- 1-(2-Methoxy-4,6-dimethylphenyl)ethan-1-one (CAS 21009-92-7)
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- (3,5-Dimethylphenyl)(2-((2-fluorobenzyl)thio)-4,5-dihydro-1H-imidazol-1-yl)methanone (CAS 851806-73-0)
- Calcipotriol Impurity 39 (CAS 7691-76-1)
- Methyl 4-(2-chloroacetyl)-2,5-dimethyl-1-(propan-2-yl)-1h-pyrrole-3-carboxylate (CAS 877963-98-9)
- 1,3-Dithiolane (CAS 4829-04-3)
- 3-[(6-chloropyridin-2-yl)oxy]propan-1-ol (CAS 1340094-47-4)
- 6-Hydroxy-5-nitro-2-propylpyrimidin-4(1H)-one (CAS 60185-68-4)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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