Home > Pharmaceutical Standards > (23S)-23, 25-Dihydroxy Vitamin D3 (77733-16-5)
(23S)-23, 25-Dihydroxy Vitamin D3 CAS 77733-16-5
Purity 97%+ In Stock Pharmaceutical Standards
CAS No. 77733-16-5
Molecular Formula C27H44O3
Molecular Weight 416.64 g/mol
Category Pharmaceutical Standards / API Standards
Availability In Stock
Description (23S)-23, 25-Dihydroxy Vitamin D3 (CAS 77733-16-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C27H44O3. Molecular weight: 416.64 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
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) (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) (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) 3-(Trihydroxysilyl)propyl Methylphosphonate, Monosodium Salt Solution (CAS 84962-98-1) 3-(4-Chloroquinazolin-2-yl)phenyl acetate (CAS 911417-24-8) Carbocisteine Impurity 23 Trisodium Salt (CAS CATO-C4X-201023) 3-(4-Bromophenyl)-1-methyl-4-nitro-1H-pyrazol-5-amine (CAS 1707393-54-1) Ethyl 3-(6,7-dimethoxy-4-oxoquinazolin-3(4H)-yl)propanoate (CAS 247573-03-1) N-Methyl-N-(4-nitrophenyl)methanesulfonamide (CAS 334952-01-1) 59880-97-6
Chemotactic peptide
F-Met-Leu-Phe
L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)-
N-Formyl-L-methionyl-L-leucyl-L-phenylalanine
N-Formyl-Met-Leu-Phe
N-Formylmethionine leucyl-phenylalanine
fMLF
fMLP (misnomer but widely used) (CAS 59880-97-6)
« 2-Chloro-N-(2,6-dimethylphenyl)-N-(2-oxooxazolidin-3-yl)acetamide Tetradecylphosphatidylcholine »
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