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发明名称
Méthode de préparation de la vitamine a à partir des caroténoïdes du beta-carotène
摘要
申请公布号
FR991438(A)
申请公布日期
1951.10.05
申请号
FRD991438
申请日期
1949.07.28
申请人
发明人
RAOUL YVES-JEAN-LOUIS
分类号
A61K31/07;C07C403/00
主分类号
A61K31/07
代理机构
代理人
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