Title: Mefluidide
CAS Registry Number: 53780-34-0
CAS Name: N-[2,4-Dimethyl-5-[[(trifluoromethyl)sulfonyl]amino]phenyl]acetamide
Synonyms: 5-acetamido-2,4-dimethyltrifluoromethanesulfonanilide; methafluoridamid
Manufacturers' Codes: MBR-12325; VEL-3973
Trademarks: Vistar (3M); Embark (3M)
Molecular Formula: C11H13F3N2O3S
Molecular Weight: 310.29
Percent Composition: C 42.58%, H 4.22%, F 18.37%, N 9.03%, O 15.47%, S 10.33%
Literature References: Prepn: T. L. Fridinger,
DE 2406475;
idem, US 3894073 (1974, 1975 to 3M). Metabolism: G. W. Ivie,
J. Agric. Food Chem. 28, 1286 (1980).
Properties: Cryst solid, mp 183-185°. Vapor press at 25°: <10-4 mm Hg. pKa 4.6. Soly at 25° (g/l): water 0.18; benzene 0.31; dichloromethane 2.1; 1-octanol 17; methanol 310; acetone 350. Aq solns decomp in uv light. Mildly corrosive to metals.
Melting point: mp 183-185°
pKa: pKa 4.6
Use: Plant growth regulator; herbicide.