CAS No. 37924-13-3


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Adverse Effects

ACTIVITY: Herbicide (anilide)

Note: WHO: believed obsolete or discontinued

CAS Name: 1,1,1-trifluoro-N-[2-methyl-4-(phenylsulfonyl)phenyl]methanesulfonamide


Adverse Effects:


Environmental Effects:

Perfluidone will leach through wet, neutral or slightly alkaline soils, with a tendency toward greater leaching in soils having low clay and organic matter.

Regulatory Information
(only comprehensive for the US)
US EPA Registered: No 
US EPA PC Code: 108001 
California Chemical Code 1895  
US Tolerances: Revoked  
FDA LMS Code: 748 
US EPA Permit Date
and Registrant:
1976, 3M 
European Commission:

Not allowed to be used as an active ingredient after July 25, 2003.

Other Information
Molecular Formula: C14H12 F3 NO4S2 
Manufacturers: 3M 
Other Names:

-- see list below 

Manufacture site:  
Of special interest:
PAN Data
November 26, 2002 - European Commission: Perfluidone is one of 320 pesticides to be withdrawn in July 2003. Some 320 substances used in plant protection products (PPPs) - including insecticides, fungicides and herbicides - are to be withdrawn from the market by 25 July 2003 as part of the European Commission's new approach to the evaluation of active substances in plant protection products. This aims to improve safeguards to ensure that all such products in use are safe for the environment and human health. Users, wholesalers and retailers of plant protection products will need to be aware of whether the products they use or sell are likely to be withdrawn, so as to prevent them being left with stocks of unusable material. Those concerned should contact their national authority to check the authorisation status for any particular product. The Regulation (ní 2076/2002 of 20 November 2002), with the list of the 320 substances, has now been published in the Offical Journal. Ref: MIDDAY EXPRESS. News from the Press and Communication Service's midday briefing. 
September 30, 1985 - Chemical Fact Sheet - Pesticide Management Education Program at Cornell U. 
Believed to be obsolete or discontinued for use as pesticides. WHO Recommended Classification of Pesticides by Hazard and Guidelines to Classification 2000-2002. Table 6. Active ingredients not included in the Classification and believed to be obsolete or discontinued for use as pesticides, p 37.  
Herbicide Products - partial list 
October 2001 - Glossary of Pesticide Chemicals, A listing of pesticides subject to analysis of residues in foods and feeds by the US Food and Drug Administration.  

1,1,1-Trifluoro-4'-(phenylsulfonyl)methanesulfono-o-toluidide (8CI)
BRN 2180629
Caswell No. 903D
EINECS 253-718-3
EPA Pesticide Chemical Code 108001
MBR 8251
Methanesulfonamide, 1,1,1-trifluoro-N-(2-methyl-4-(phenylsulfonyl)phenyl)-
Methyl-N-benzoyl-N-(3-chloro-4-fluorophenyl)alaninate, (R)-
SB 1528
WL 43423

Systematic Names
Methanesulfonamide, N-(4-phenylsulfonyl-o-tolyl)-1,1,1-trifluoro-

Classification Code
Agricultural Chemical
Out-dated pesticide

Ref: ChemIDplus at Toxnet.

US Federal Register

PBI/GORDON CORPORATION - plans to voluntarily cancel the use of perfluidone (Destin) on TOBACCO due to the cost of reregistration. This is the last registered use of this herbicide; it has not been marketed in the U.S. for several years. Unless withdrawn by the registrant, this cancellation becomes final on 10/18/94. PBI/Gordon will consider continuing this use if another party wishes to develop the required data. If cancelled, existing stocks of perfluidone in the hands of dealers and users can be distributed, sold or used until such stocks are depleted. Note: The Fed. Reg. is not available online for early 1994. This information comes from a USDA notice.

July 1992 US EPA Proposed Tolerance Revocation for residues on cottonseed. The EPA has proposed to revoke the tolerances for residues of perfluidone in or on COTTONSEED. All registrations were cancelled in 1984. This herbicide was never commercially marketed in the U.S. Note: The Fed. Reg. is not available online in 1992. This information is from the Pesticide Management Education Program (PMEP) at Cornell University
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