Saflufenacil

Synonym(s):N′-{2-Chloro-4-fluoro-5-[1,2,3,6-tetrahydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]benzoyl}-N-isopropyl-N-methylsulfamide;2-Chloro-5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl]-4-fluoro-N-{[methyl(1-methylethyl)amino]sulfonyl}benzamide

CAS NO.：372137-35-4
Empirical Formula: C17H17ClF4N4O5S
Molecular Weight: 500.85
MDL number: MFCD16875523
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-13 11:24:50

What is Saflufenacil?

The Uses of Saflufenacil

Saflufenacil-d7 is the labeled version of Saflufenacil (S081800), which is a herbicide of the pyrimidinedione chemical class used for the preplant burndown and selective preemergence dicot weed control in different field crops. It was found to inhibit protoporphyrinogen IX oxidase (PPO) enzyme.

Definition

ChEBI: Saflufenacil is a member of the class of sulfamides that is sulfamide in which one of the amino groups has been substituted by a methyl group an an isopropyl group, while the other has been substituted by a 2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-3,6-dihydropyrimidin-1(2H)-yl]benzoyl group. An important BASF herbicide, not registered in Europe but sold in USA, Canada and several other countries to control weeds in a wide range of food crops. Often mixed with other products such as glyphosate. It has a role as an EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor, a herbicide and an agrochemical. It is a member of monochlorobenzenes, a member of monofluorobenzenes and a member of sulfamides. It is functionally related to a uracil.

Mode of action

Physiological and biochemical profiling confirmed that saflufenacil was a protoporphyrinogen-IX-oxidase (PPO) inhibitor. Saflufenacil elicits symptoms similar to other peroxidizing herbicides, including rapid, light-dependent necrosis of foliar tissue. Saflufenacil is readily absorbed by the root and shoot tissue of plants. Once absorbed, Saflufenacil is predominantly translocated via the xylem, with limited movement via the phloem. Saflufenacil is highly effective in controlling dicot weeds through contact and residual activity. In addition to non-crop and pre-plant burndown utility, saflufenacil demonstrates preemergence selectivity in a wide range of crops. Selectivity is conferred by physical placement and rapid metabolism of saflufenacil in tolerant crop species such as corn.

Properties of Saflufenacil

Density	1.542±0.06 g/cm3(Predicted)
solubility	DMSO ()Slightly, Methanol (Slightly)
pka	4.24±0.40(Predicted)
form	neat
BRN	11326826
InChI	InChI=1S/C17H17ClF4N4O5S/c1-8(2)25(4)32(30,31)23-15(28)9-5-12(11(19)6-10(9)18)26-14(27)7-13(17(20,21)22)24(3)16(26)29/h5-8H,1-4H3,(H,23,28)
EPA Substance Registry System	Benzamide, 2-chloro-5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl]-4-fluoro-N-[[methyl(1-methylethyl)amino]sulfonyl]- (372137-35-4)

Safety information for Saflufenacil

Signal word	Warning
Pictogram(s)	Environment GHS09
GHS Hazard Statements	H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P273:Avoid release to the environment. P391:Collect spillage. Hazardous to the aquatic environment P501:Dispose of contents/container to..…