p13419
Pyridat
CAS: 55512-33-9
Molecular Formula: C19H23ClN2O2S
p13419 - Names and Identifiers
p13419 - Physico-chemical Properties
| Molecular Formula | C19H23ClN2O2S |
| Molar Mass | 378.92 |
| Density | d20 1.555 |
| Melting Point | 27° |
| Boling Point | bp0.1 220° |
| Flash Point | 100°C |
| Appearance | neat |
| Merck | 13,8058 |
| BRN | 759528 |
| pKa | -0.84±0.10(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | nD20 1.568 |
| Physical and Chemical Properties | The pure product is white crystal, m.p.27 ℃. The original medicine is brown oil. Boiling point> 220 ℃(1.34 × 10-4Pa), relative density 1.15 (20 ℃), melting point 20~25 ℃, vapor pressure 1.338 × 10-7Pa, refractive index n20D1.568. Soluble in a variety of organic solvents, insoluble in water. |
p13419 - Risk and Safety
| Risk Codes | R38 - Irritating to the skin R43 - May cause sensitization by skin contact R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S24 - Avoid contact with skin. S37 - Wear suitable gloves. 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 |
| WGK Germany | 2 |
| RTECS | FG3880000 |
| Toxicity | LD50 in male rats, female rats, mice (mg/kg): 1970, 2400, >10,000 orally; in rabbits (mg/kg): >3450 dermally; LC50 (96 hr) in carp, trout: >100, 81 mg/l (Chéroux, Moncorge) |
p13419 - References
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| toxicity | Acute oral LD50 of rats was 1960-12400mg/kg, and acute percutaneous LD50 of rabbits was> 3400mg/kg. It has moderate stimulation to rabbit skin, no stimulation to eyes, and is more sensitive to guinea pigs. The teratogenic, carcinogenic and mutagenic effects were observed in water under animal experimental conditions. Trout lc5081 mg/L(96H), carp 100mg/L(96H), wild duck oral LD50 "1000mg/kg. Low toxicity to bees. |
| Use | a selective post-emergence herbicide. The stem and leaf were rapidly absorbed by the leaves after treatment, which hindered the Hill reaction of photosynthesis, made the weed leaves yellow and stopped growing, and died. It is suitable for controlling broad-leaved weeds in cereal crops such as wheat, rice and corn, and has good control effect on pig, amaranth and some undergraduate weeds. If it is used to control weeds in wheat fields, it is applied at the early stage or peak stage of wheat leaf division and at the stage of 2~4 leaves of weeds, and it is treated with 45% wettable powder 20~30g/100 m2, and 4.5 ~ 6.8kg stems and leaves of water, the dosage of medium sensitive weeds can be appropriately increased to 25~35g/100. Or with 45% cream 20~30ml/100 of water 6 ~ 7.5kg leaf spray. Such as the control of corn weeds, in the corn 3~5 leaf stage, weeds 2~4 leaf stage, with 45% wettable powder 25~35g/100, the water 4.5 ~ 7.5kg stem and leaf spray. |
| production method | with benzene as solvent, in the presence of triethylamine, reaction of 6-chloro-3-phenylpyridazin-4-ol with S-octyl thiocarbonyl chloride. |
| category | pesticide |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 1970 mg/kg; Oral-mouse LD50: 10000 mg/kg |
| flammability hazard characteristics | toxic nitrogen oxide, chloride, and sulfur oxide gases from combustion |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
| extinguishing agent | dry powder, foam, sand |
Last Update：2024-04-09 15:17:18
