Title: Iodosulfuron-methyl-sodium
CAS Registry Number: 144550-36-7
CAS Name: 4-Iodo-2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]benzoic acid methyl ester monosodium salt
Synonyms: methyl 4-iodo-2-[3-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)ureidosulfonyl]benzoate sodium salt
Manufacturers' Codes: AE-F115008
Molecular Formula: C14H13IN5NaO6S
Molecular Weight: 529.24
Percent Composition: C 31.77%, H 2.48%, I 23.98%, N 13.23%, Na 4.34%, O 18.14%, S 6.06%
Literature References: Sulfonylurea herbicide for post-emergence use in cereals; acetolactate synthase inhibitor. Prepn: O. Ort
et al., WO 9213845;
eidem,
US 5688745 (1992, 1997 both to Hoechst). Comprehensive description and use with the safener, mefenpyr-diethyl: E. Hacker
et al., Brighton Crop Prot. Conf. - Weeds 1999, 15-22. Field trials in wheat: H. L. Crooks
et al., Weed Technol. 18, 93 (2004).
Properties: Almost colorless to light beige crystalline powder, mp 152°. Vapor pressure (25°): 6.7 ′ 10-9 Pa. Soly in water at 20° (g/l): 0.16 (pH 5); 25 (pH 7); 65 (pH 9). Log P (octanol/water): 1.07 (pH 5); -0.70 (pH 7); -1.22 (pH 9). LD50 in rats (mg/kg): 2678 orally; >2000 dermally (Hacker).
Melting point: mp 152°
Log P: Log P (octanol/water): 1.07 (pH 5); -0.70 (pH 7); -1.22 (pH 9)
Toxicity data: LD50 in rats (mg/kg): 2678 orally; >2000 dermally (Hacker)
Derivative Type: Combination with mefenpyr-diethyl
Trademarks: Husar (Bayer CropSci.); Hussar (Bayer CropSci.)
Use: Herbicide.
