Orthosulfamuron , 213464-77-8

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

CAS NO.：213464-77-8

Empirical Formula: C16H20N6O6S

Molecular Weight: 424.43

MDL number: MFCD09027340

Update time: 2023-04-23

PRODUCT Properties

Melting point:	160–162°C
Density	1.466±0.06 g/cm3(Predicted)
vapor pressure	<1.1 × 10-4 (Pa at 25 °C)
storage temp.	Refrigerator, under inert atmosphere
solubility	Solubility in organic solvents (g/l at 20 °C) Acetone 20 Ethyl acetate 3.3 Dichloromethane 56 n‐Heptane 0.00023 Methanol 8.3 Xylene 0.13
pka	Dissociation constant (pKa at 20 °C) Predicted to have five overlapping dissociation constants: ?1.4, 0.7, 3.5, 9.6, 11.5
color	White to Off-White
Water Solubility	Solubility in water (g/l at 20 °C) 0.026 (pH 4, buffer) 0.63 (pH 7, buffer) 39 (pH 8.5, buffer)
BRN	11343666
Stability:	Moisture Sensitive
LogP	0.3-2.02 at 20℃ and pH4-9
Surface tension	71.4mN/m at 37.7mg/L and 22℃

Description and Uses

Orthosulfamuron can be used in biological study and agricultural use of herbicidal composition comprising erlukuilincaotong, cyhalofop-?butyl and sulfonylurea herbicide, and its application in controlling annual weed of rice field.