Which organophosphate is NOT an aryl phosphate?
All are aryl phosphate except malathion which is a alkyl phosphate. Alkyl phosphates are: HETP TEPP (Tetron) OMPA Dimefox Isopestox Malathion (Kill bug; Bugsolin) Sulfotepp Demeton Trichlorfon Aryl phosphates are: Parathion (nitrostigmine) (Follodol; Kill phos; Ekato) Paraoxon Methyl-parathion (Metacide) Chlohion Diazinon (Diazion; Tik 20) Ref: The essentials of forensic medicine and toxicology by Dr K S Narayan Reddy, 27th edition, Page 457.
Parathion
Tik-20
Malathion
Paraoxon