英文同义词: | 4,6-Dimethyl-7-(ethylamino)-2H-1-benzopyran-2-one;Coumarin 2,99%,pure,laser grade;Coumarin 24,6-Dimethyl-7-ethylaminocoumarin;CouMarin 2, laser grade, pure, 99% 500MG;2H-1-Benzopyran-2-one, 7-(ethylamino)-4,6-dimethyl-;7-(ethylamino)-4,6-dimethyl-2h-1-benzopyran-2-on;7-(ethylamino)-4,6-dimethyl-2H-1-Benzopyran-2-one;7-(Ethylamino)-4,6-dimethyl-2H-chromen-2-one |