purpurin 紅紫素; 紅紫素; 紫色素
pur·pu·rin /ˈpɝpjərən/ 名詞 紅紫素,紫色素,1,2,4-三羥基恩昆
Pur·pu·rin n. Chem. A dyestuff resembling alizarin, found in madder root, and extracted as an orange or red crystalline substance. ◄ ►