76832-21-8

Upstream product

• 7542-45-2 3,3'-dihydroxy-β,β-carotene-4,4'-dione 
• 108-24-7 acetic anhydride 
• 115406-45-6 (all-E,3R,3'R)-β,β-carotene-3,3'-diol 3,3'-diacetate 

Relevant academic research and scientific papers

179. trans/cis Isomerization of Astaxanthin Diacetate/Isolation by HPLC and Identification by 1H-NMR Spectroscopy of Three Mono-cis-and Six Di-cis-Isomers

Thermal and iodine-catalyzed photochemical trans/cis isomerization of synthetic, racemic astaxanthin diacetate (3,3'-dihydroxy-β,β-carotene-4,4'-dione diacetate) yielded multi-component mixtures of cis isomers.Separation and isolation of 10 different cis-

Method for producing esterified astaxanthin from esterified zeaxanthin

A method is described for preparing astaxanthin esters from zeaxanthin by acylation of zeaxanthin with an acylating agent followed by contacting the esterified zeaxanthin with an oxidizing agent to produce esterified astaxanthin. The astaxanthin esters ar

Natural Occurrence of Enantiomeric and meso-Astaxanthin. 5. Ex Wild Salmon (Salmo salar sad Onchorhynchus)

The configurational isomers of astaxanthin (3,3'-dihydroxy-β,β-carotene-4,4'-dione) from the flesh of salmon (Salmo salar and Onchorhynchus) cau at differen places in Europe and Canada were isolated and analyzed as (-)-camphanic acid diesters by means of