purpuroxanthin
noun
pur·pu·ro·xanthin
¦pərpyə(ˌ)rō+
: a reddish yellow crystalline compound C14H6O2(OH)2 obtained from madder root or by reduction of purpurin; 1,3-dihydroxy-anthraquinone
called also xanthopurpurin
Word History
Etymology
Latin purpura + International Scientific Vocabulary -o- + xanthin