Yosioka, I/ Nakanishi, T/ Izumi, S/ Kitagawa, S 1968: Structure of a lichen pigment entothein and its identity with secalonic acid A, a major ergot pigment. - Chem. Pharm. Bull.16: 2090-2091. [RLL List # 90 / Rec.# 20687] Keywords: PIGMENT / ENTOTHEIN / SECALONIC ACID A / CHEMISTRY