10 components: 100ug/ml each of Prometryn [CAS:7287-19-6] ; Propazine [CAS:139-40-2] ; Sebuthylazine [CAS:7286-69-3] ; Simazine [CAS:122-34-9] ; Terbuthylazine [CAS:5915-41-3] ; Terbuthylazine-desethyl [CAS:30125-63-4] ; Terbutryn [CAS:886-50-0] ; Atrazine [CAS:1912-24-9] ; Atrazine-desethyl [CAS:6190-65-4] ; Atrazine-desisopropyl [CAS:1007-28-9] in Acetone