Name | Azimsulfuron |
Synonyms | a8947 dpx47 In-A 894 in-a8947 dpx-a8947 Azimsulfuron Azimsulfuron [iso] ethyl-4-(2-methyl-2h-tetrazol-5-yl)- 1h-pyrazole-5-sulfonamide,n-(((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl)-1-m 3-(4,6-Dimethoxypyrimidin-2-yl)-1-[2-methyl-4-(2-methyltetrazol-5-yl)pyrazol-3-yl]sulfonyl-urea N-[(4,6-dimethoxypyrimidin-2-yl)carbamoyl]-1-methyl-4-(2-methyl-2H-tetrazol-5-yl)-1H-pyrazole-5-sulfonamide N-((4,6-diMethoxypyriMidin-2-yl)carbaMoyl)-1-Methyl-4-(2-Methyl-2H-tetrazol-5-yl)-1H-pyrazole-5-sulfonaMide 1H-Pyrazole-5-sulfonamide, N-(((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl)-1-methyl-4-(2-methyl-2H-tetrazol-5-yl)- |
CAS | 120162-55-2 |
InChI | InChI=1/C13H16N10O5S/c1-22-11(7(6-14-22)10-18-21-23(2)19-10)29(25,26)20-13(24)17-12-15-8(27-3)5-9(16-12)28-4/h5-6H,1-4H3,(H2,15,16,17,20,24) |
Molecular Formula | C13H16N10O5S |
Molar Mass | 424.4 |
Density | 1.74±0.1 g/cm3(Predicted) |
Melting Point | 170° |
Water Solubility | Solubility in water (g/l at 20 °C): 0.072 (pH 5) 1.050 (pH 7) 6.536 (pH 9). |
Solubility | Solubility in organic solvents (g/l at 25 °C) Acetone 26.4 Acetonitrile 13.9 Ethyl acetate 13.0 Dichloromethane 65.9 n‐Hexane <0.2 Methanol 2.1 Toluene 1.8 |
Appearance | neat |
Color | White to Off-White |
BRN | 8284859 |
pKa | 3.6(at 25℃) |
Storage Condition | Sealed in dry,2-8°C |
Refractive Index | 1.759 |
Physical and Chemical Properties | Storage Conditions: 0-6 ℃ |
Hazard Symbols | N - Dangerous for the environment![]() |
Risk Codes | 50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
UN IDs | UN 3077 9 / PGIII |
HS Code | 29350090 |
Toxicity | LD50 in rats, bobwhite quail, mallard duck (mg/kg): >5000, >2250, >2250 orally; in rats (mg/kg): >2000 dermally (Marquez); LC50 (96 hr) in carp, bluegill sunfish, rainbow trout (ppm): >300, >1000, 154 (Marquez) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
toxicity | rat acute oral LD50>5000mg/kg, rabbit acute percutaneous LD50>2000mg/kg, the LC50 of acute inhalation in rats was 5.9mg/L. No irritation to rabbit skin and eyes. No mutagenicity. LC50>300mg/L for carp, 154mg/L for trout and> 1000mg/L for Turus (96H). Acute oral LD50>2250mg/kg in wild ducks and quails. |
Use | a sulfonylurea-type catechogen, acetolactate synthase inhibitor. After the use of rice seedlings, through the weed root and leaf absorption, conduction in the plant body, resulting in the death of weeds. It is used for controlling weeds in rice fields such as humulus, broadleaved grass and Cyperaceae. In the application of rice seedlings, the dose of 8~25g/hm2, if with the adjuvant, the dosage is lower. With 20~25g/hm2 application, can effectively control the Humulus, northern water flower, different Cyperus, purple water amaranth, eye, flower, Alisma orientalis and so on. The activity of tetrazolsulfuron-methyl and Humulus scandens and Cyperus was higher than that of bensulfuron-methyl. Even after washing with rain, the herbicidal effect was still stable. It is mainly used for controlling Humulus scandens, broad-leaved weeds and Cyperaceae Weeds. It is safe for rice because it is rapidly metabolized into non-toxic substances in rice plants. After the rice seedlings, the dose is 8 to 25g(a. I.)/ha. The amount will be lower if used together with the adjuvant. 20~25g(a. I.)/ha application, can effectively control the Humulus scandens, northern water flower, different type of Cyperus, purple water amaranth, eye, flower, Alisma orientalis and so on. The activity of Humulus scandens and Cyperus is higher than that of bensulfuron-methyl. If the two are mixed, the synergistic effect is obvious. Even under the condition of large water leaching and low temperature, the herbicidal effect is still stable. |
production method | using malononitrile as starting material, reaction with trimethyl orthoformate, followed by condensation with methyl hydrazine to get pyrazolomide, then reaction with sodium azide, after methylation, diazotization, sulfonylation, amination, finally condensation with phenyl pyrimidine carbamate, post-treatment to obtain the target product. |