(23R)-23, 25-Dihydroxy Vitamin D3 CAS 81738-09-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 81738-09-2 |
| Molecular Formula | C27H44O3 |
| Molecular Weight | 416.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (23R)-23, 25-Dihydroxy Vitamin D3 (CAS 81738-09-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C27H44O3. Molecular weight: 416.64 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C27H44O3 |
| Molecular Weight | 416.64 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Related R Standards
- 7α,27-Dihydroxy-4-cholesten-3-one (CAS 192187-67-0)
- (23S)-23, 25-Dihydroxy Vitamin D3 (CAS 77733-16-5)
- 1α,25-Dihydroxy-7-dehydrocholesterol (CAS 61954-91-4)
- 3,27-Dihydroxy-5-cholesten-7-one (CAS 240129-30-0)
- 25, 26-Dihydroxy Vitamin D3 (CAS 29261-12-9)
- 5,7-Dihydroxy-2-(4-hydroxy-3-(4-hydroxy-3-methylbutyl)phenyl)-3,6-dimethoxy-4H-chromen-4-one (CAS 84294-77-9)
- 6,10-Dihydroxy-8-(4-(4-(pyrimidin-2-yl)piperazin-1-yl)butyl)-8-azaspiro[4.5]decane-7,9-dione (CAS 658701-59-8)
- (3β,22S)-Dihydroxy Cholesterol (CAS 26649-05-8)
Recommended Standards
- (1R,3R)-5-[(Z)-2-[(1R,3aR,7aR)-1-[(2R)-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-1,2,3,3a,6,7-hexahydroinden-4-yl]ethenyl]-4-methylcyclohex-4-ene-1,3-diol (CAS 66760-29-0)
- Methyl 3-[2-(4-chloro-2-iodophenoxy)ethyl]benzoate (CAS 1924165-71-8)
- (24S)-Secalciferol (CAS 55700-58-8)
- 2-(3,5-Dichlorophenyl)-5-fluoropyridine-4-acetonitrile (CAS 1361834-53-8)
- 3-Cyclopropoxy-4-methoxy-5-(methylthio)pyridine (CAS 1243368-10-6)
- N-(5,6-dihydro-4H-cyclopenta[d]thiazol-2-yl)-2-fluorobenzamide (CAS 600130-70-9)
- 4-(1,3-Dithiolan-2-yl)phenyl N-phenylcarbamate (CAS 329079-32-5)
- Cyclopropyl(5-fluoro-2-hydroxyphenyl)methanone (CAS 1225815-64-4)
- (4-Chlorobenzyl)(3,4-difluorophenyl)sulfane (CAS 1443353-23-8)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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 13829788188 / jacky.chen@cato-chem.com