28421-56-9

Basic information

• Product Name: 3β-acetoxy-5α,8α-(4-phenyl-1,2,4-triazolidine-3,5-dione-1,2-diyl)ergosta-6,22-diene
• Synonyms: 3β-acetoxy-5α,8α-(4-phenyl-1,2,4-triazolidine-3,5-dione-1,2-diyl)ergosta-6,22-diene
• CAS NO: 28421-56-9
• Molecular Weight: 613.841
• Mol File: 28421-56-9.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 3β-acetoxy-5α,8α-(4-phenyl-1,2,4-triazolidine-3,5-dione-1,2-diyl)ergosta-6,22-diene(CAS DataBase Reference)
• NIST Chemistry Reference: 3β-acetoxy-5α,8α-(4-phenyl-1,2,4-triazolidine-3,5-dione-1,2-diyl)ergosta-6,22-diene(28421-56-9)
• EPA Substance Registry System: 3β-acetoxy-5α,8α-(4-phenyl-1,2,4-triazolidine-3,5-dione-1,2-diyl)ergosta-6,22-diene(28421-56-9)

Safety Data

• Hazardous Substances Data: 28421-56-9(Hazardous Substances Data)

Upstream product

• 57760-53-9 (22E,24S)-24-methylcholesta-5,7,22-trien-3β-ol 
• 57-87-4 Ergosterol 
• 15988-11-1 4-Phenylurazole 
• 1108-03-8 ergosterol acetate 
• 4233-33-4 4-Phenyl-1,2,4-triazolidine-3,5-dione 

Downstream Products

• 91874-90-7 1α,25-dihydroxy-28-norvitamin D₂ 
• 91874-90-7 5,6-cis- and 5,6-trans-1α,25-dihydroxy-28-norvitamin D₂ 
• 143520-72-3 Toluene-4-sulfonic acid (S)-3-[2-[(1R,3aS,7aR)-1-((E)-(R)-5-hydroxy-1,5-dimethyl-hex-2-enyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(Z)-ylidene]-4-methylene-cyclohexyl ester 
• 51883-25-1 25-hydroxy-28-norvitamin D₂ 
• 95511-43-6 (22E)-3β,24,25-trihydroxy-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)ergosta-6,22-diene 
• 58050-55-8 (24R)-24,25-dihydroxyvitamin D₂ 
• 58050-55-8 (24S)-24,25-dihydroxyvitamin D₂ 
• 60283-67-2 (22E)-3β-acetoxy-25-hydroxy-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)cholesta-6,22-dien-24-one 
• 212248-27-6 3β-acetoxy-20-[5-(1-hydroxy-1-methylethyl)isoxazol-3-yl]-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)pregn-6-ene 
• 212248-26-5 3β-acetoxy-20-(5-hydroxymethylisoxazol-3-yl)-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)pregn-6-ene 
• 212248-25-4 3β-acetoxy-20-(5-bromomethylisoxazol-3-yl)-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)pregn-6-ene 
• 212248-24-3 3β-acetoxy-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)-23-norcholest-6-en-22-aldoxime 
• 57-87-4 Ergosterol 
• 28421-57-0 3-acetoxy-2'-phenyl-[1,2,4]triazolo[1',2':6,7](6,7-diaza-5,8-etheno-23,24-dinor-cholane)-21,3',5'-trione 

Relevant articles and documents

Synthesis of a New Vitamin D3 Hapten and Its Protein Conjugates

The synthesis of 25-(1-carboxymethoxy)-imino-3(S)-hydroxy-9,10-seco-27-norcholesta-5(Z),7(E),10(19)-triene, a new hapten of vitamin D3, has been carried out in ten steps from ergosterol. The hapten was conjugated to horseradish peroxidase and bovine serum albumin. Antibodies to 25-hydroxyvitamin D3 were obtained using the synthesized conjugates. An immunochemical system was developed for the quantitative determination of 25-hydroxyvitamin D3.

Side-Chain Modified Ergosterol and Stigmasterol Derivatives as Liver X Receptor Agonists

A series of stigmasterol and ergosterol derivatives, characterized by the presence of oxygenated functions at C-22 and/or C-23 positions, were designed as potential liver X receptor (LXR) agonists. The absolute configuration of the newly created chiral ce

A CONVENIENT SYNTHESIS OF 1α,25-DIHYDROXY-28-NORVITAMIN-D2

The title compound was synthesized via the Julia olefination using ring B-diene protected 3β-hydroxy-23,24-bisnorchola-5,7-diene-22-al acetate and the side-chain synthon 2-methyl-4-phenylsulfonyl-2-(tetrahydropyranyloxy)butane.Ring B-deprotection, photoly