pur·pu·ro·xanthin
| \ ¦pərpyə(ˌ)rō+ \
Definition of purpuroxanthin
: a reddish yellow crystalline compound C14H6O2(OH)2 obtained from madder root or by reduction of purpurin; 1,3-dihydroxy-anthraquinone
— called also xanthopurpurin
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