Clomazone is a selective pre-sprout herbicide.It is used as closing treatment during post-planting and pre-sprouting.The product has high effect to control annual weeds of soybean,cotton,maixe etc.field such as Echinochloa crus-galli.Polugonum bungeaanum.Chenopodium album.Setaria viridis.Abutllon the ophrasti.Solanum nigrum.Xanthium sibiricum,Amaranthus retroflexus etc.
Molecular weight: 239.7
CAS No.: 81777-89-1
Physical and chemical properties:
The technical grade is a slight yellow viscous liquid, relative density 1.19, vapour pressure 19.21mPa at 23ˇăC, solubility in water 1.1g/l, easily soluble in acetone, chloroform, methanol, methylbenzene etc,
Acute oral for rat LD50 about 1710mg/kg (tech), for female rat LD50 1360 mg/kg (tech), acute dermal for rabbit LD50>2000mg/kg, acute inhalation for rat LC (4h) 4.8mg/L. Acute oral for mallard and partridge LD50>2150mg/kg. Toxic to fish LC50 (96h): rainbow trout 19mg/L, blue sunfish 34mg/L.