142927-18-2

Basic information

• Product Name: (6Z)-(1S,3R,20S)-20-(3-hydroxy-3-methylbutoxy)-9,10-secopregna-5⁽¹⁰⁾,6,8-triene-1,3-diol
• Synonyms: (6Z)-(1S,3R,20S)-20-(3-hydroxy-3-methylbutoxy)-9,10-secopregna-5⁽¹⁰⁾,6,8-triene-1,3-diol
• CAS NO: 142927-18-2
• Molecular Weight: 418.617
• Mol File: 142927-18-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (6Z)-(1S,3R,20S)-20-(3-hydroxy-3-methylbutoxy)-9,10-secopregna-5⁽¹⁰⁾,6,8-triene-1,3-diol(CAS DataBase Reference)
• NIST Chemistry Reference: (6Z)-(1S,3R,20S)-20-(3-hydroxy-3-methylbutoxy)-9,10-secopregna-5⁽¹⁰⁾,6,8-triene-1,3-diol(142927-18-2)
• EPA Substance Registry System: (6Z)-(1S,3R,20S)-20-(3-hydroxy-3-methylbutoxy)-9,10-secopregna-5⁽¹⁰⁾,6,8-triene-1,3-diol(142927-18-2)

Safety Data

• Hazardous Substances Data: 142927-18-2(Hazardous Substances Data)

Upstream product

• 142785-61-3 1α,3β-dihydroxy-20(S)-(3-hydroxy-3-methylbutyloxy)pregna-5,7-diene 

Downstream Products

• 103909-75-7 maxacalcitol 

Relevant articles and documents

Ultraviolet irradiation apparatus for photochemical reaction and preparation process of vitamin D derivative making use of the same

Disclosed herein are an ultraviolet irradiation apparatus for photochemical reactions which can irradiate the photo-reactive solution with ultraviolet rays having a specific wavelength suitable for the intended photochemical reaction at a high efficiency, and a process by which a provitamin D derivative can be converted into a provitamin D derivative at a high efficiency by means of a photochemical reaction by one-step process of light irradiation, thereby preparing a vitamin D derivative at a high efficiency. The ultraviolet irradiation apparatus irradiates the photo-reactive solution with the ultraviolet rays having the specific wavelength through a quartz rod. Specifically, the apparatus is constructed by an electric discharge lamp, a condensing and reflecting mirror and a plane mirror both having wavelength selective property, an optical filter which transmits the ultraviolet rays having the specific wavelength, and a quartz rod on which the ultraviolet rays having the specific wavelength are struck. The photo-reactive solution is irradiated with the ultraviolet rays from the quartz rod. The quartz rod is immersed in the photo-reactive solution, or a reaction vessel is irradiated with the ultraviolet rays from the quartz rod. In the preparation process of the vitamin D derivative, an ultraviolet irradiation apparatus for photochemical reactions having an ultraviolet radiation-emitting lamp, an optical system having wavelength selective property and a quartz rod on which the ultraviolet rays having the specific wavelength from the optical system are struck is used, and a solution of a provitamin D derivative is irradiated with the ultraviolet rays having the specific wavelength emitted from the quartz rod to cause a photochemical reaction of the provitamin D derivative solution, thereby forming a previtamin D derivative. The previtamin D derivative is further subjected to a thermal isomerization reaction to prepare the vitamin D derivative.