Topic editor: Steven G. Gilbert
Lead author: Steven G. Gilbert

[This article has been tagged for development.]


Chlorfenvinphos is an organophosphate insecticide which was widely used in the past to control household pests such as flies, fleas, and mice. It is not bioaccumalative nor is there evidence showing that chronic exposure seem to have negative health effects. Acute effects start 30-60 minutes after exposure and reach their peak after 6-8 hours. These effects are mostly nervous system ailments including headache, dizziness, feelings of anxiety and confusion, and possibly abdominal cramps, convulsions, and passing out. There is also no evidence showing that chlorfenvinphos causes Cancer or reproductive defects in humans. Chlorfenvinphos' use was canceled in 1991 and the most common exposure now results from eating imported contaminated food (#ATSDR).

Just the facts

Physical Information

Name: Chlorfenvinphos

Use: insecticide

Source: synthetic chemistry

Recommended daily intake: none

Absorption: dermal, ingestion, inhalation

Toxicity/symptoms: moderately

Regulatory facts: canceled

Chemical Structure

Structure retrieved from INCHEM.


Chemical Description

Chlorfenvinphos is a vinyl organophosphrous insecticide which is an amber liquid with a mild odor at room temperature. It is soluble in most solvents (#ATSDR).

Health Effects

The major effect of the chlorfenvinphos is on the nervous system. Acute effects (mostly from ingestion) can cause nausea, vomiting, abdominal cramps, diarrhea, difficulty in breathing, and fainting (#ATSDR ToxFAQs - Chlorfenvinphos). These symptoms usually begin 30-60 minutes after exposure and peak 6-8 hours later. There is no evidence of negative health effects from chronic exposure to chlorfenvinphos, nor is there evidence of it causing Cancer nor has chlorfenvinphos exposure ever resulted in death.


All compounds containing chlorfenvinphos were banned from use in 1991.


ATSDR. Chemical and Physical Information - Chlorfenvinphos. Accessed 5-4-07.

ATSDR. ToxFAQs - CHlorfenvinphos. Accessed 5-4-07.