2-(4-CHLOROPHENOXY)PROPANOIC ACID 2-(4-CPP) 2-(4-Chlorophenoxy)propionic acid 3307-39-9 4-CPP EINECS 221-991-8 NSC 70174 Propanoic acid, 2-(4-chlorophenoxy)- (9CI) Propionic acid, 2-(p-chlorophenoxy)- (8CI) alpha-(4-Chlorophenoxy)propionic acid