52840-38-7

COUMARIN 500 Coumarin500,lasergrade Coumarin 500, laser grade, pure Coumarin 500,98%,pure,laser grade Coumarin 500, 98%, laser grade, pure 7-ETHYLAMINO-4-TRIFLUOROMETHYLCOUMARIN 7-(ethylamino)-4-(trifluoromethyl)-2-benzopyrone 7-(ethylamino)-4-(trifluoromethyl)-2h-1-benzopyran-2-on 4-(Trifluoromethyl)-7-(ethylamino)-2H-1-benzopyran-2-one 7-(Ethylamino)-4-(trifluoromethyl)-2H-1-benzopyran-2-one