Mefluidide, diethanolamine salt
CAS No. 53780-36-2


Return to Adverse Effects Page

ACTIVITY: Herbicide (Anilide)

Systematic Name: Acetamide, N-(2,4-dimethyl-5-
(((trifluoromethyl)sulfonyl)amino)phenyl)-, compd. with 2,2'-iminobis(ethanol) (1:1)


Adverse Effects:


Regulatory Information
(only comprehensive for the US)
US EPA Registered: Yes 
US EPA PC Code: 114002 
(Old US EPA PC Code: 227400)
California Chemical Code 1955 
US EPA Permit Date
and Registrant:
1979, 3M 
Registered use in
(includes only a limited list of countries)

Other Information
Molecular Formula: C11-H13-F3-N2-O3-S.C4-H11-N-O2 
Manufacturers: PBI/Gordon 
Other Names: 

Caswell No. 333AA
Embark (2-S)
MBR 12325
Methafluoridamid diethanolamine


sulfonyl)amino)phenyl)acetamide, diethanolamine

Of special interest:
PAN Data 
2005 - Schedule for Reregistration & Tolerance Reassessment (RED) for "Mefluidide" is expected to be December 2007. Contact at EPA: Mark Howard (703) 308-8172; According to EPA:
Through the pesticide reregistration and tolerance reassessment programs, EPA is assessing risks and making risk management decisions for older pesticides. These decisions are summarized in documents known as REDs, IREDs, and TREDs. By making decisions according to the schedule below, EPA will meet its statutory deadlines for completing reregistration and tolerance reassessment.
Some of the decision dates presented in the schedule may change due to the dynamic nature of the review process. Any pesticide decisions that are not completed during the current fiscal year will be rescheduled for the following year. EPA is committed to meeting its reregistration and tolerance reassessment deadlines.
1986 - Summary of Toxicology Data. California EPA, Department of Pesticide Regulation, Medical Toxicology Branch. Also available at: 
September 1996 - Fort Drum, Watertown, New York. Experiment with Mefluidide. Report 96-24: Plant Growth Regulators' Effect on Growth of Mixed Cool-Season Grass Stands at Fort Drum by Antonio J. Palazzo, Paul Zang, Robert W. Duell, Timothy J. Cary and Susan E. Hardy. Prepared for ENVIRONMENTAL DIVISION, FORT DRUM and U.S. ARMY FORCES COMMAND. 
1979 - 1994 - US EPA Index of Cleared Science Reviews. 
1985 - Embark (3M) Herbicide Profile. Cornell Univerisity's Pesticide Management Education Program (PMEP). 
1985 - Report of Agricultural Research Southeast Branch Experiment Station Agricultural Experiment Station Kansas State University.  
Pesticide Fact Sheet. Prepared for U.S. Department of Agriculture, Forest Service by Information Ventures, Inc.  
Herbicide products - Partial List 
See also

Mefluidide, potassiium salt

PubMed Abstracts

J Agric Food Chem 1981 Nov-Dec;29(6):1175-9

No Abstract available

Residues of the plant growth regulator mefluidide [N-[2,4]dimethy-5-[[(trifluoromethyl)sulfonyl]amino]phenyl]acetamide] in the milk and tissues of lactating dairy cows: a 28-day feeding study.

Clark DE, Coppock CE, Ivie GW.

J Agric Food Chem 1980 Nov-Dec;28(6):1286-8

No Abstract available

Fate of the plant growth regulator mefluidide [N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl]amino]phenyl]acetamide] in a cow and sheep.

Ivie GW.

US Federal Register
Date Published Docket Identification Number Details
Aug 4, 1997 OPP-300523 Pesticides Subject to Tolerance Reassessment.
May 15, 1996 OPP-34093 Mefluidide and Salts. US EPA's Reregistration Eligibility Decision (RED) Development Schedule.
June 7, 1995 na Mefluidide, Potassium Salt ( PBI/Gordon). Request to Delete Use of "Embark 1-L"for utility rights-of-way and roads.
Fluoride Action Network | Pesticide Project | 315-379-9200 |