The information in this profile may be out-of-date. It was last revised in 1996. EXTOXNET no longer updates this information, but it may be useful as a reference or resource.

Please visit the National Pesticide Information Center (NPIC) to find updated pesticide fact sheets. If you don't find a fact sheet related to your question, feel free to call 1-800-858-7378. NPIC is open five days a week from 8:00am to 12:00pm Pacific Time.


Extension Toxicology Network

Pesticide Information Profiles

A Pesticide Information Project of Cooperative Extension Offices of Cornell University, Oregon State University, the University of Idaho, and the University of California at Davis and the Institute for Environmental Toxicology, Michigan State University. Major support and funding was provided by the USDA/Extension Service/National Agricultural Pesticide Impact Assessment Program.

EXTOXNET primary files maintained and archived at Oregon State University

Revised June 1996

Cacodylic acid

Trade and Other Names: Cacodylic acid is also known as dimethylarsinic acid. Trade names include Ansar 138, Arsan, Bolls-Eye, Broadside, Check-Mate, Cotton Aide HC, Dilic, Moncide, Montar, Phytar, Phytar 138, Phytar 600, Rad-E-Cate 25, Silvisar 510, and Sylvicor.

Regulatory Status: Cacodylic acid is a General Use Pesticide (GUP). Products containing cacodylic acid are categorized toxicity class III - slightly toxic and bear the Signal Word CAUTION.

Chemical Class: arsenical

Introduction: Cacodylic acid is an arsenical nonselective contact herbicide which defoliates or desiccates a wide variety of plant species. It is used as a cotton defoliant, for lawn renovation, for weed control in non-crop areas such as around buildings, near perennial ornamentals, along fence rows, and in forest management. Its phytotoxic properties are quickly inactivated upon contact with the soil. It is available in concentrated solution formulations.

Formulation: It is available in concentrated solution formulations.

Toxicological Effects:

Ecological Effects:

Environmental Fate:

Physical Properties:

Exposure Guidelines:

Basic Manufacturer:

Drexel Chemical Company
1700 Channel Avenue
Memphis, TN 38113


References for the information in this PIP can be found in Reference List Number 10

DISCLAIMER: The information in this profile does not in any way replace or supersede the information on the pesticide product labeling or other regulatory requirements. Please refer to the pesticide product labeling.