25,26,26,26,27,27,27-Heptafluoro-5,6-epoxycholestanol CAS 240129-24-2
| CAS No. | 240129-24-2 |
| Molecular Formula | C27H39F7O2 |
| Molecular Weight | 528.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
25,26,26,26,27,27,27-Heptafluoro-5,6-epoxycholestanol (C27H39F7O2) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
25,26,26,26,27,27,27-Heptafluoro-5,6-epoxycholestanol (CAS 240129-24-2), molecular formula C27H39F7O2 and molecular weight 528.59 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C27H39F7O2 |
| Molecular Weight | 528.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
Related Heptafluoro Standards
- 25,26,26,26,27,27,27-Heptafluoro-5α,6α-epoxycholestanol (CAS 240129-21-9)
- 25,26,26,26,27,27,27-Heptafluoro-7-hydroxycholesterol (CAS 240129-42-4)
- 25,26,26,26,27,27,27-Heptafluoro-7α-hydrosycholesterol (CAS 240129-40-2)
- 25,26,26,26,27,27,27-Heptafluoro-7-ketocholesterol (CAS 215094-37-4)
- 4,4,5,5,6,6,6-Heptafluoro-1-iodo-3,3-bis(trifluoromethyl)hexane (CAS 115347-68-7)
- 1,1,1,2,2,3,3-Heptafluoro-3-[[1,1,1,2,3,3-hexafluoro-3-[[1,1,1,2,3,3-hexafluoro-3-(1,2,2,2-tetrafluoroethoxy)propan-2-yl]oxy]propan-2-yl]oxy]propane (CAS 3330-16-3)
- 5,5,6,6,7,7,7-Heptafluoro-4,4-bis(trifluoromethyl)heptyl acrylate (CAS 1980085-17-3)
- Bis(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionate)calcium [Ca(FOD)2] (CAS 36885-29-7)
Recommended Standards
- 2,3-O-Isopropylidene-1,6-ditosyl-L-sorbose (CAS 2484-55-1)
- 1-Oxo-3,6,9,12,15,18,21,24,27,30-decaoxatritriacontan-33-oic acid (CAS 2353410-04-3)
- [10-(1-Dibenzofuranyl)-9-anthracenyl]diphenylphosphine (CAS 1449401-79-9)
- N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-2-((3-cyano-6-(4-methoxyphenyl)-4-(trifluoromethyl)pyridin-2-yl)thio)acetamide (CAS 489444-20-4)
- 3-((4-Methylpiperidin-1-yl)sulfonyl)aniline (CAS 436091-54-2)
- 6-Bromo-2-fluoro-3-methylpyridine (CAS 1211536-81-0)
- 1-(Morpholinosulfonyl)piperidin-4-amine (CAS 1042791-75-2)
- Tert-butyl 4-(2-aminoethyl)-1,4-diazepane-1-carboxylate (CAS 874841-91-5)
- 5-Cyclopropoxy-2-fluoro-4-iodopyridine (CAS 1243356-83-3)
- 5-Chloroisochromane-1,3-dione (CAS 1267393-24-7)
- Paliperidone Impurity 48 (CAS 181525-38-2)
- 2-(3A-methyl-1,3-dioxo-1,3,3a,4,7,7a-hexahydro-2H-4,7-methanoisoindol-2-yl)acetic acid (CAS 1005134-08-6)
- N-(5-bromo-6-methylpyridin-2-yl)-4-ethylbenzamide (CAS 638141-07-8)
- Renin Inhibitor Peptide (CAS 50410-01-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com