IUPAC Name: 1-bis(butylsulfanyl)phosphorylsulfanylbutane

Source: Used as a defoliant on crops to protect them from insects and other pests.

Summary: Tribufos is an organic compound used mainly as a defoliant (herbicide). Its use as a defoliant is to remove leaves from crops that may be targeted by insects and other pests. It is a colorless liquid at room temperature that is soluble in water up to 2.3 mg/L at 20 C. It has a density of 1.057 g/mL at 20 C. Upon decomposition it will produce gaseous phosphorous and sulfur oxides. Tribufos may also be found in the environment as an oxidized transformation product of merphos. Koc values ranging from 4874 – 12648 indicate very low mobility within soil. Tribufos is highly resistant to biodegradation. The half-life reaction of hydrolysis under neutral pH conditions was 124 days. Bioaccumulation in organisms is expected to be very high.

GHS Hazard Statement: H301, H310, H331, H373, H400, H410, GHS06, GHS08, GHS09