52011-76-4
6-chloro-4-oxo-2,3-dihydrochromene-2-carboxylic acid
→
~93%
40026-24-2
6-氯-3,4-二氢-2H-1-苯并吡喃-2-羧酸
357396-06-6
(+/-)-6-chloro-2,3-dihydro-4H-1-benzopyran-2-carboxylic acid methyl ester