Name | Fomesafen |
Synonyms | FLEX flex REFLEX FLEX(R) FLEXSTAR Fomesafen REFLEX(R) 5-(2-chloro-α,α,α-trifluoro-p-tolyloxy)-N-mesyl-2-nitrobenzamide 5(2-chloro-alpha,alpha,alpha-trifluoro-p-tolyloxy)-n-mesyl-2-nitrobenzamide 5-[2-CHLORO-4-(TRIFLUOROMETHYL)PHENOXY]-N-(METHYLSULFONYL)-2-NITROBENZAMIDE 5-(2-chloro-4-(trifluoromethyl)phenoxy-N-(methyl sulphonyl)-2-nitrobenzamide 5-[2-Chloro-4-(trifluoromethyl)phenoxy]-N-(methylsulphonyl)-2-nitrobenzamide 5-(2-Chloro-4-trifluoromethylphenyloxy)-N-methylsulfonyl-2-nitrobenzoylamide 5(2-chloro-alpha,alpha,alpha-trifluoro-p-tolyloxy)-n-methylsulfonyl-2-nitrobenz |
CAS | 72178-02-0 |
EINECS | 276-439-9 |
InChI | InChI=1/C15H10ClF3N2O6S/c1-28(25,26)20-14(22)10-7-9(3-4-12(10)21(23)24)27-13-5-2-8(6-11(13)16)15(17,18)19/h2-7H,1H3,(H,20,22) |
Molecular Formula | C15H10ClF3N2O6S |
Molar Mass | 438.76 |
Density | 1.7075 (rough estimate) |
Melting Point | 220-221°C |
Solubility | Acetonitrile (Slightly), DMSO |
Appearance | neat |
Color | White to Off-White |
BRN | 8165046 |
pKa | 23-25(at 25℃) |
Storage Condition | Sealed in dry,2-8°C |
Refractive Index | 1.5660 (estimate) |
Physical and Chemical Properties | Melting Point: 220-221 |
Use | It is mainly used in soybean fields to control weeds such as Chenopodium, amaranth, Polygonum, Solanum nigrum, Thistle, duck toe grass, Xanthium sibiricum, hemp and Bidens bipinnata |
Hazard Symbols | Xn - Harmful |
Risk Codes | 22 - Harmful if swallowed |
Safety Description | 2 - Keep out of the reach of children. |
WGK Germany | 1 |
RTECS | CV2475000 |
HS Code | 29350090 |
Toxicity | LD50 orally in male, female rats (mg/kg): 1250-2000, 1600; LC50 (48, 96 hr.) in rainbow trout and bluegill (mg/l): 830, 680, 6740, 6030 (Colby) |
Raw Materials | 3,4-Dichlorobenzotrifluoride Toluene 3-Hydroxybenzoic acid Sodium thiosulfate Dimethyl sulfate Potassium hydroxide Potassium carbonate Nitric acid Ammonia |
The Pure product was a white crystalline solid. The melting point is 220~221 ℃, the relative density is (20 ℃)1.28, the vapor pressure (50 ℃)<0.1 × 10-3 Pa. Solubility at 20 °c (g/L): acetone 300, dichlorane 10, xylene 1.9, hexane 0.5, cyclohexanone 150.
5-[2-chloro-4-( -fluoromethyl) phenoxy] -2-nitrobenzoic acid and methanesulfonyl thioisocyanate reaction, the formation of fluorosulfonic ether. Or with the role of thionyl chloride into acid chloride, and then with the methyl sulfonamide reaction to obtain fluorosulfonic ether.
A selective herbicide. Photosynthesis in plants can be disrupted by leaf absorption. It has special effects on controlling broad-leaved weeds and has good activity in soil.
fluorosulfurfur ether: male and female rats by oral LD50 is 1250 ~ 2000mg/kg, 1600mg/kg. The sodium salt: male, female rats, mice oral LD50 1860,1500,750,770( mg/kg); Female guinea pigs LD50 490 ~ 980mg/g; the LD50 of male rabbits was 490mg/kg.