13-07236. Perfluidone [Archived]

Nomenclature

CAS number: 37924-13-3
1,1,1-Trifluoro-N-[2-methyl-4-(phenylsulfonyl)phenyl]methanesulfonamide; 1,1,1-trifluoro-4′-(phenylsulfonyl)methanesulfono-o-toluidide; 2-methyl-4-phenylsulfonyltrifluoromethanesulfonanilide; MBR-8251; Destun (3M).
C14H12F3NO4S2; mol wt 379.37.
C 44.32%, H 3.19%, F 15.02%, N 3.69%, O 16.87%, S 16.90%.

Description and references

Selective pre-emergence herbicide. Prepn: Moore, Harrington, DE 2118190 (1972 to Minnesota Mining & Mfg.), C.A. 77, 19402u (1972). Activity: W. A. Gentner, Weed Sci. 21, 122 (1973).

Chemical structure

Properties

Cryst solid, mp 142-144°. pKa 2.5. Vapor press. at 25°: <1 × 105 mm Hg. Soly in water at 22°: 60 mg/l. Soly (g/l): acetone 750; benzene 11; dichloromethane 162; methanol 595.

Use

Herbicide.

Status

This monograph has been retired and is no longer subject to revision or update.