Return to the list
Japan - Final Regulatory Action
Demeton-methyl CAS number:
8022-00-2, 867-27-6, 919-86-8
Date circular:

Chemical name: Phosphorothioic acid, O-[2-(ethylthio)ethyl] O,O-dimethyl ester, mixt. with S-[2-(ethylthio)ethyl] O,O-dimethyl phosphorothioate

Final regulatory action has been taken for the category: Pesticide, Industrial

Final regulatory action: The chemical is Severely Restricted

Use or uses prohibited by the final regulatory action:

All uses except below.
All uses
*Since industrial uses of this substance not causing damage to human health have not been verified, ban on industrial use is imposed in order to protect human health.

Use or uses that remain allowed:


Pesticide use or uses that remain allowed:

Uses for prevention and extermination of noxious insect for citrus fruits, apple, pear, grape, peach, apricot, plum, hop, rapeseed, mulberry, ornamental plant or its bulb not used for food by the users stipulated by the Poisonous and Deleterious Substances Control Law.

The final regulatory action was based on a risk or hazard evaluation: Yes

Summary of the final regulatory action:

Restriction on manufacture, import, sale, use, transfer and possession.

The reasons for the final regulatory action were relevant to: Human health

Summary of known hazards and risks to human health:

It is an organic phosphorus tablet with perviousness, is easily absorbed from human skin, and presents a strong poisoning condition if only adhered to clothes.

Expected effect of the final regulatory action in relation to human health:

Should result in reduced human exposure to this substance as its use is phased out.

Date of entry into force of the final regulatory action: 12/06/1956