(23S)-23, 25-Dihydroxy Vitamin D3 CAS 77733-16-5
| CAS No. | 77733-16-5 |
| Molecular Formula | C27H44O3 |
| Molecular Weight | 416.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 416.64 g/mol gives (23S)-23, 25-Dihydroxy Vitamin D3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (23S)-23, 25-Dihydroxy Vitamin D3 (CAS 77733-16-5), a certified reference material (molecular formula C27H44O3, MW 416.64 g/mol) for analytical method development and quality control.
(23S)-23, 25-Dihydroxy Vitamin D3 (C27H44O3) contains a steroid core, a hydroxyl group, an ether linkage. 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.
As a certified reference material (CRM), (23S)-23, 25-Dihydroxy Vitamin D3 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 | 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.) | 1979 |
Related S Standards
- 7α,27-Dihydroxy-4-cholesten-3-one (CAS 192187-67-0)
- (23R)-23, 25-Dihydroxy Vitamin D3 (CAS 81738-09-2)
- 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
- (24S)-Secalciferol (CAS 55700-58-8)
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- (2E,4E,6E,8E,10E,12E,14E,16E,18E)-2,6,10,15,19,23-Hexamethyltetracosa-2,4,6,8,10,12,14,16,18,22-decaenal (CAS 59057-70-4)
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- Formamide- (CAS 1449-77-0)
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