Rimsulfuron

Synonym(s):1-(4,6-Dimethoxy-2-pyrimidinyl)-3-[3-(ethylsulfonyl)-2-pyridylsulfonyl]urea

CAS NO.：122931-48-0
Empirical Formula: C14H17N5O7S2
Molecular Weight: 431.44
MDL number: MFCD01632305
SAFETY DATA SHEET (SDS)
Update Date: 2026-07-31 15:25:14

What is Rimsulfuron?

The Uses of Rimsulfuron

Rimsulfuron is used as a pesticide.

Definition

ChEBI: A N-sulfonylurea that is N-carbamoyl-3-(ethylsulfonyl)pyridine-2-sulfonamide substituted by a 4,6-dimethoxypyrimidin-2-yl group at the amino nitrogen atom.

Agricultural Uses

Herbicide: For controlling broadleaf weeds. Registered for use in the U.S. and Canada. A U.S. EPA restricted Use Pesticide (RUP) for some formulations. Registered for use in some EU countries.

Trade name

ACCENT®; BASIS® (rimsulfuron+thifensulfuron methyl); DPX-E9636®; DPX 79406® (nicosulfuron+rimsulfuron); Matrix® (nicosulfuron+rimsulfuron); SHADEOUT®; STEADFAST®, (nicosulfuron+rimsulfuron); TRANXIT®

Metabolic pathway

The primary degradation pathway in most of the systems examined is the contraction or rearrangement and hydrolysis of the sulfonylurea linkage to yield two products that have N-pyridyl-N- pyrimidyl urea and N-pyridyl-N-pyrimidylamine moieties, and fragments of pyridine sulfonamide, 4,6- dimethoxy-2-pyrimidylurea, and 4,6-dimethoxy-2- amino-pyrimidine, respectively. In plants, demethylation and hydroxylation reactions follow the contraction or rearrangement to give N-3,4-dihydroxy- 5-methoxy-2-pyrimidyl-N(3-ethylsulfonyl-2- pyridyl)amine.

Properties of Rimsulfuron

Melting point:	172-177°C
Density	1.4918 (rough estimate)
refractive index	1.6460 (estimate)
Flash point:	>200 °C
storage temp.	0-6°C
solubility	DMSO (Slightly), Methanol (Very Slightly, Heated)
form	neat
pka	4.1(at 25℃)
form	Solid
color	White to Pale Beige
BRN	7501778
CAS DataBase Reference	122931-48-0(CAS DataBase Reference)
EPA Substance Registry System	Rimsulfuron (122931-48-0)

Safety information for Rimsulfuron

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H319:Serious eye damage/eye irritation
Precautionary Statement Codes	P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.