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MB5 BLUE 203 Yamada Blue 203 Yamamoto Blue 203 BLUE 203 ISO 9001：2015 REACH 3-(4-Diethylamino-2-hexyloxyphenyl)-3-(2-methyl-1-ethylindol-3-yl)-4-azaphthalide 7-[4-(diethylamino)-2-hexoxyphenyl]-7-(1-ethyl-2-methylindol-3-yl)furo[3,4-b]pyridin-5-one Furo[3,4-b]pyridine-5(7H)-one,7-[4-(diethylaMino)-2-hexyloxy)phenyl]-7-(1-ethyl-2-Methyl-1H-indol-3-yl)- 4-b]pyridin-5(7H)-one, 7-[4-(diethylamino)-2-(hexyloxy)phenyl]-7-(1-ethyl-2-methyl-1H-indol-3-yl)-Furo[3