申请人:Hoffmann-La Roche Inc.
公开号:US03974181A1
公开(公告)日:1976-08-10
The compound 7,9,9-trimethyl-1,4-dioxoaspiro [4,5] dec-7-en-8-methanol an intermediate in the preparation of Zeaxanthin and Xanthophyll, known coloring agents for foodstuffs.
化合物7,9,9-三甲基-1,4-二氧杂螺[4,5]癸-7-烯-8-甲醇是制备玉米黄素和黄质的中间体,这两种物质是食品着色剂。