Echinenone as a Provitamin A

• 1 June 1936
• journal article
• letter
• Published by Springer Nature in Nature
• Vol. 137  (3476) , 996
• https://doi.org/10.1038/137996b0

Abstract

Keywords

• PIGMENT
• ECHINENONE
• GLANDS
• VIOLET
• DARK
• URCHINS
• CAROTENE
• ALCOHOL
• BAND
• EXTRACTED