... R)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy]propanoate CAS RN [71283-80-2] Common name fenoxaprop-P (BSI ... -[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy]propanoic acid CAS RN [113158-40-0] PHYSICAL CHEMISTRY fenoxaprop-P-ethylMol ... (pH 9) (20 ºC). fenoxaprop-PMol. wt. 333.7 M.f. C16H12ClNO5 Form Light beige, weakly pungent, fine powder ... h) 0.56 (pH 8.0-8.4), 2.7 (pH 7.7-7.8) (both mg/l). Algae LC50 (72 h) ...