butyric acid derivative 14 article 12 controlled study 12 nonhuman 12 priority journal 12 unclassified drug 12 1 naphthyl acetate 8 2 naphthyl acetate 8 Animals 8 Cholinesterases 8 Gastropoda 8 Invertebrata 8 Water Pollutants, Chemical 8 animal tissue 8 carboxylesterase 8 cholinesterase 8 enzyme activity 8 enzyme inhibition 8 in vivo study 8 inhibition 8 4 nitrophenyl acetate 6 Carboxylic Ester Hydrolases 6 Pesticides 6 acetic acid derivative 6 acetylthiocholine 6 animal experiment 6 azinphos methyl 6 butyric acid 4 nitrophenyl ester 6 enzyme substrate complex 6 gastropod 6