5-Chlorovaleryl chloride CAS 1575-61-7 ose mea fa'aogaina taua ole vaila'au ole pyrazole. 5-Chloropentanoyl chloride o loʻo faʻaaogaina e avea ma mea mataʻutia o le 1,1,7-trichloro-1-hepten-3-one, ona mafai lea ona faʻapipiʻiina le vailaʻau pyrazole lona tolu. Pyrazole herbicides ei ai uiga o le ultra-efficient chemical activity, maualuga le filifilia, matua maualalo oona mamama ma uiga lelei siosiomaga, ma isi, ma ua avea ma nofoaga vevela o herbicide suesuega ma atinae i le lalolagi i tausaga talu ai nei. Aʻo faʻaauau pea ona faʻalauteleina le manaʻoga mo vailaʻau faʻamalosi maualuga, e faʻapea foʻi le manaʻoga mo le 5-chlorovaleryl chloride e avea o se vaeluaga.