aBB (20S,24RS)-24-Ethylcholestane CAS 71117-92-5
| CAS No. | 71117-92-5 |
| Molecular Formula | C29H52 |
| Molecular Weight | 400.72 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 aBB (20S,24RS)-24-Ethylcholestane.
aBB (20S,24RS)-24-Ethylcholestane (CAS 71117-92-5), molecular formula C29H52 and molecular weight 400.72 g/mol, is a CATO reference standard with documented purity and traceability.
aBB (20S,24RS)-24-Ethylcholestane (C29H52) contains an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures aBB (20S,24RS)-24-Ethylcholestane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C29H52 |
| Molecular Weight | 400.72 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
Recommended Standards
- aaa (20R,24R)-24-Ethylcholestane (CAS 62446-14-4)
- N-(2-((4-bromophenyl)sulfinyl)ethyl)-2-(4-chlorophenyl)acetamide (CAS 477710-80-8)
- 5 β-Stigmastane (CAS 4705-29-7)
- 2-((4-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)phenyl)carbamoyl)cyclopropane-1-carboxylic acid (CAS 1024301-83-4)
- 5-(Aminomethyl)-2,3-dihydro-1H-isoindol-1-one (CAS 1334479-23-0)
- 2-(4-((4-Bromophenyl)sulfonyl)piperazin-1-yl)ethanol (CAS 524718-84-1)
- 3-Ethyl-1-methyl-3-phenylindolin-2-one (CAS 35524-76-6)
- (S)-2-Amino-3,3-difluoropropanoic acid hydrochloride (CAS 2873558-68-8)
- 1-hydroxy-2,2,5,5-tetramethylpyrrolidine-3-carboxylic acid (CAS 96623-58-4)
- 1-Chloro-n-cyclopropyl-n-isopentylmethanesulfonamide (CAS 1341318-68-0)
- 2,3-dichlorohexane (CAS 54305-87-2)
- 10-Methyl-2,4,10-triazatricyclo[9.4.0.03,]pentadeca-1(11),3(8),4,6,12,14-hexaen-9-one (CAS 16287-28-8)
- 5-Cyclopropyl-1-(3-hydroxypropyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 1249271-34-8)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com