7-ethoxy-6-methoxy-2,2-dimethyl-2H-chromene, 7-ethoxy-6-methoxy-2,2-dimethylchromene, Ethoxyprecocene, precocene 3, 7-ethoxy-6-methoxy-2,2-dimethyl-2H-chromene (Precocene III), 6-methoxy-7-ethoxy-2,2-dimethyl-2H-chromene, 7-Ethoxyprecocene, 7-Ethoxy-6-methoxy-2,2-dimethyl-2H-benzopyran, 7-ethoxy-6-methoxy-2,2-dimethyl-2H-1-benzopyran, 7-ethoxy-6-methoxy-2,2-dimethyl-2h-chromen