23,23-Difluoro-25-Hydroxyvitamin D3 CAS 95826-03-2
| CAS No. | 95826-03-2 |
| Molecular Formula | C27H42F2O2 |
| Molecular Weight | 436.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 436.62 g/mol gives 23,23-Difluoro-25-Hydroxyvitamin D3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
23,23-Difluoro-25-Hydroxyvitamin D3 (CAS 95826-03-2), molecular formula C27H42F2O2 and molecular weight 436.62 g/mol, is a CATO reference standard with documented purity and traceability.
23,23-Difluoro-25-Hydroxyvitamin D3 (C27H42F2O2) 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 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.
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 | C27H42F2O2 |
| Molecular Weight | 436.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 2,3-Difluoro-4''-Heptyl-4-Pentyl-1,1':4',1''-Terphenyl (CAS 121218-85-7)
- 2,3-Difluoro-4-Heptyl-4''-Pentyl-1,1':4',1''-Terphenyl (CAS 121218-90-4)
- 24,24-Difluoro-25-Hydroxyvitamin D3 (CAS 71603-41-3)
- Methyl 2-(4-(5,5-difluoro-7-(thiophen-2-yl)-5H-5l4,6l4-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-3-yl)phenoxy)acetate (CAS 150152-63-9)
- 2-(difluoro(3,4,5-trifluorophenoxy)methyl)-1,3-difluoro-5-((1s,4r)-4-propylcyclohexyl)benzene (CAS 208338-62-9)
- 2,6-Difluoro-N-((3-(naphthalen-2-yl)-1-phenyl-1H-pyrazol-4-yl)methyl)benzamide (CAS 956781-80-9)
- 6,7-Difluoro-1-(3-methylbenzyl)-3-(m-tolylsulfonyl)quinolin-4(1H)-one (CAS 1326823-02-2)
- 6,7-Difluoro-1-(4-methylbenzyl)-3-(m-tolylsulfonyl)quinolin-4(1H)-one (CAS 1326863-21-1)
Recommended Standards
- (1S,3S,7S,8S,8aS)-8-(2-((2R,4R)-4-Hydroxy-6-oxotetrahydro-2H-pyran-2-yl)ethyl)-3,7-dimethyldecahydronaphthalen-1-yl 2,2-dimethylbutanoate (CAS 87770-13-6)
- 5-(1,1-Dimethylethyl)-2-hydroxy-3-(triphenylsilyl)benzaldehyde (CAS 1254097-55-6)
- 3β,7α,12α-Trihydroxy-5β-cholanic Acid Methyl Ester (CAS 28050-54-6)
- Cholic Acid Ethyl Ester (CAS 47676-48-2)
- 4-Hydrazinylbenzonitrile (CAS 17672-27-4)
- 4,5-Diphenyl-2-(p-tolyl)thiazole (CAS 120332-29-8)
- (S)-2-Amino-5-(carbamimidoyloxy)pentanoic acid (CAS 40736-35-4)
- Methyl 2-(4-(4-hydroxyphenyl)cyclohexylidene)acetate (CAS 701232-66-8)
- 1-Isobutyl-1H-benzimidazole-2-thiol (CAS 55489-14-0)
- 4-((Dimethylamino)methyl)piperidin-4-ol (CAS 695145-47-2)
- Methyl 5-(furan-2-yl)oxazole-4-carboxylate (CAS 89205-03-8)
- 2-Nitro-4-(trifluoromethyl)-1,1'-biphenyl (CAS 2613-38-9)
- N-[(S)-1-(2-Amino-acetyl)-piperidin-3-yl]-N-ethyl-acetamide (CAS 1353999-86-6)
- Allo-D-Ile27-Tirzepatide (CAS CATO-CPTD788961)
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