1,3-dioxolane-2-acetic acid, alpha-chloro-2-(chloroethynyl)- InChI=1/C7H6Cl2O4/c8-2-1-7(5(9)6(10)11)12-3-4-13-7/h5H,3-4H2,(H,10,11 chloro[2-(chloroethynyl)-1,3-dioxolan-2-yl]acetic acid