74038-32-7 Dicyclopentylphosphinous acid isopropyl ester Isopropyl dicyclopentylphosphinite NSC222443 Phosphinous acid, dicyclopentyl-, 1-methylethyl ester Phosphinous acid, dicyclopentyl-, isopropyl ester WLN: L5TJ APOY1&1- AL5TJ