Cholest-5-ene CAS 570-74-1
| CAS No. | 570-74-1 |
| Molecular Formula | C27H46 |
| Molecular Weight | 370.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Cholest-5-ene is closely related to an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Cholest-5-ene (CAS 570-74-1), molecular formula C27H46 and molecular weight 370.65 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Cholest-5-ene (C27H46) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Cholest-5-ene 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 | C27H46 |
| Molecular Weight | 370.65 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.) | 1957 |
Related Cholest Standards
- Cholest-2-ene (CAS 15910-23-3)
- Cholest-3-ene (CAS 16732-84-6)
- Cholest-4-ene (CAS 16732-86-8)
- Cholest-8(14)-ene (CAS 54725-42-7)
- (3beta)-Cholest-5-en-3-ol-25,26,27-13C3 335080-97-2 (CAS 335080-97-2)
- 5α-Cholest-7-en-3β-ol-1,2,5,6α-d4 (CAS 1182005-25-9)
- 4-Methyl-cholest-4-en-3-one (CAS 2041-92-1)
- 4α-Methyl-5α-cholest-7-en-3-one (CAS 2789-43-7)
Recommended Standards
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- n-(4-Bromo-2-fluorophenyl)-5-chlorothiophene-2-sulfonamide (CAS 745023-79-4)
- 17B(H)-22,29,30-Trisnorhopane (CAS 51271-94-4)
- 5-(Hydroxymethyl)-3-phenylpyrrolidin-2-one (CAS 133390-84-8)
- N-Nitroso Primaquine (CAS CATO-C4X-26352)
- Methyl 2-amino-2-(2-(benzyloxy)-5-fluorophenyl)acetate (CAS 2230825-27-9)
- Methyl 2,6-Dichloro-4-methylnicotinate (CAS 1013648-04-8)
- Ethyl 7-chloro-2,3-dihydro-1H-pyrrolo[1,2-a]indole-9-carboxylate (CAS 71948-61-3)
- ethyl 2-(aminomethyl)-4-methyl-1,3-thiazole-5-carboxylate (CAS 120237-87-8)
- 2-(Difluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine-5-carboxylic acid (CAS 1806049-12-6)
- 1-Methyl-1,2,3,4-tetrahydroquinoline-6-carbonitrile (CAS 74896-23-4)
- 2-Chloro-4-iodo-6-(trifluoromethoxy)pyridine (CAS 1221171-96-5)
- Liraglutide Impurity 13 TFA Salt (CAS CATO-C4X-199213)
Why CATO?
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