英文名称:Tannins, salts with 2-(3-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1-propen-1-yl)-1,3,3-trimethyl-3H-indolium; C.I. Basic Red 12, tannate; Tannins, salts with 2-(3-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1-propen-1-yl)-1,3,3-trimethyl-3H-indolium