vc9-104
Ethoprophos
CAS: 13194-48-4
Molecular Formula: C8H19O2PS2
vc9-104 - Names and Identifiers
| Name | Ethoprophos |
| Synonyms | Mocap vc9-104 Rovokil v-c9-104 v-c 9-104 Ethoprophos V-C Chemical V-C 9-104 O-Ethyl-s,s-dipropyl-phosphorodithioate O-ethyl S,S-dipropyl phosphorodithioate S,S-Dipropyl O-ethyl phosphorodithioate phosphorodithioicacido-ethyls,s-dipropylester phosphorodithioicacid,o-ethyls,s-dipropylester |
| CAS | 13194-48-4 |
| EINECS | 236-152-1 |
| InChI | InChI=1/C8H19O2PS2/c1-4-7-12-11(9,10-6-3)13-8-5-2/h4-8H2,1-3H3 |
vc9-104 - Physico-chemical Properties
| Molecular Formula | C8H19O2PS2 |
| Molar Mass | 242.34 |
| Density | d420 1.094 |
| Melting Point | -13 °C |
| Boling Point | 86-91°C |
| Flash Point | 100°C |
| Water Solubility | 700 mg l-1 (20 °C) |
| Vapor Presure | 4.65 x 10-2 Pa (26 °C) |
| Appearance | neat |
| Merck | 13,3782 |
| BRN | 8139788 |
| Storage Condition | APPROX 4°C |
| Refractive Index | 1.493 |
| Physical and Chemical Properties | The pure product is light yellow transparent liquid, with slightly thiol odor. B. p.86 ~ 91 ℃/26.66, relative density 1.094(20 ℃), vapor pressure 4.666 × 10-2Pa (26 ℃), flash point 140 ℃, soluble in a variety of organic solvents, solubility in water is 0.75g/L (25 °c). Acidic medium stability, alkaline conditions, easy hydrolysis, heating hydrolysis accelerated at 50 ℃ in 12 weeks, good thermal stability, light stability. |
| Use | Used in farmland, orchard, vegetable and other crops to control all kinds of plant nematodes and rice, rice gall midge and other pests |
vc9-104 - Risk and Safety
| Risk Codes | R25 - Toxic if swallowed R26/27 - 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 | S27 - Take off immediately all contaminated clothing. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 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. S27/28 - |
| UN IDs | UN 2810 |
| WGK Germany | 3 |
| RTECS | TE4025000 |
| HS Code | 29309090 |
| Hazard Class | 6.1(a) |
| Packing Group | II |
| Toxicity | LC50 (96-hour) for rainbow trout 13.8 mg/L, bluegill sunfish 2.1 mg/L and goldfish 13.6 mg/L (Hartley and Kidd, 1987); acute oral LD50 for rats 262 mg/kg (Hartley and Kidd, 1987), 34 mg/kg (RTECS, 1985). |
vc9-104 - Upstream Downstream Industry
| Raw Materials | Phosphorus pentasulfide Ethyl Alcohol |
vc9-104 - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | chlorophosphate is a non-systemic non-fumigant nematicide and soil insecticide, it has a killing effect on pests, and can be used to control root knot nematodes, short body nematodes, Thorn nematodes, basal nematodes, blade nematodes, burr nematodes and other nematodes broad-spectrum nematode control and underground insect pests with contact killing effect, used for soil treatment, not for foliar treatment. Such as control of wheat cyst nematode, before sowing with granules or emulsifiable concentrate, with 60~90g active ingredient/100m2 applied to the soil. To control all kinds of nematodes in vegetables, 16~195g of active ingredients/100m2 of water sprayed on the soil. Control of potato nematodes, with 100g of active ingredient/100m2 dose of emulsifiable concentrate, the water was applied to 20cm deep soil. Control of various peanut nematodes, with 30~40g active ingredients/100m2 dose applied to the 50cm planting belt, mixed into the 15cm depth of the soil. Prevention and Control of beet nail tapping, Ma Lu, with the effective component of 30~60g/100m2 treatment. C- line phosphorus is a soil insecticide with high efficiency and contact killing to control nematodes and underground pests, and is also effective for polypoids such as Ma Lu and Centipede. Control of wheat cyst nematodes, peanut nematodes, sweet potato nematodes, potato nematodes and flowers nematodes have good effect. used in farmland, orchard, vegetable field and other crops to control all kinds of plant nematodes and rice gall midge and other pests calibration instrument and device; Evaluation method; Working standard; quality assurance/quality control; Other. |
| toxicity | Industrial products acute oral LD50 for rats was 62mg/kg, 53mg/kg for rabbits, rat acute percutaneous LD50 was 226mg/kg, rat acute inhalation LC50 was 123mg/m3. No irritation to the skin, slight irritation to the eyes. There was no change in rats and dogs fed at a dose of 100mg/kg for 3 months. No teratogenic, carcinogenic, mutagenic effect, three generations of reproductive test and neurotoxicity test showed no abnormality. Highly toxic to fish, toxic to birds. Rainbow trout LC50 2.1mg/L, goldfish 13.6mg/L, pigeon LD50 13.3mg/kg. |
| production method | phosphorus oxychloride reacts with anhydrous ethanol to generate ethoxyphosphoryl dichloride, then, it is reacted with propyl mercaptan in the presence of sodium hydroxide to obtain propyl phosphine. preparation method-preparation of O,O-diethyl-S-propylthiodithiophosphate 15g (0.1mol) of Potassium Carbonate Anhydrous are mixed with of acetone, under stirring, 18.6g (0.1mol) of O,O-diethyldithiophosphoric acid was added dropwise, cooled appropriately, stirred Dropwise for 10min, and then added with 12.3G (0.1mol) of n-bromopropane, and reacted under reflux for 2H. It is cooled, filtered, dissolves, and the residue is extracted with diethyl ether, anhydrous sodium sulfate is dried, is distilled under reduced pressure to obtain product 20.1G (99~100 deg C/240Pa) yield 88%. Preparation of potassium O-ethyl-S-propyl dithiophosphate 50ml of absolute ethanol, 6g(0.105mol) of potassium hydroxide were added with stirring to saturate with hydrogen sulfide to obtain Potassium hydrosulfide ethanol solution, to this solution was added 22.8g (0.1mol) of the product from the previous step, and the reaction was carried out under reflux for 5H. Synthesis of hydrochlorophosphate 12.9g (0.105mol) of n-bromopropane was added to the ethanol solution of the two-step reaction, refluxed and reacted for 5.5h, cooled, filtered, and dissolved to obtain 25.2g of turbid liquid, B. p.104 ~ 108 ℃/13 ~ 133Pa, purity 96.05%, yield 80%. Preparation Method phosphorus ditrichlorooxide reacts with anhydrous ethanol to generate O-ethylphosphoryl dichloride, and then reacts with propanethiol in the presence of sodium hydroxide to obtain methamidophos. |
| category | pesticide |
| toxicity grade | highly toxic |
| Acute toxicity | oral-rat LD50: 34 mg/kg |
| flammability hazard characteristics | open flame flammable; Thermal decomposition of toxic phosphorus oxide, sulfur oxide gas |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
| fire extinguishing agent | Sand, dry powder, foam |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
