1,Pyrethrins% 48-52%; 2,Naturual Insecticide; 3, Free sample(clients pay express freight); 4 ... . NamePyrethrum Refined Extract 50%Physical StateViscous amber colored liquidPyrethrin content48-52%Py1 / Py21.10-1.45Stabilizer (BHT)3-6%Specific ... /drumGuarantee2 yearsStorageAway from sunlight and wind, acceptable room temperature between 2°C - 10°CMethod of analysisAOACYunnan Hikon Biotechnology Co., Ltd, ...