Prometryn
Prometryne
CAS: 7287-19-6
Molecular Formula: C10H19N5S
Prometryn - Names and Identifiers
| Name | Prometryne |
| Synonyms | Uvon G34161 Caparol CAPAROL G-34161 AGROGARD GESAGARD Gesagard Prometrex Prometryn CAPAROL(R) Primatol Q Cotton-Pro Prometryne Caparol 4L promethyne Caparol 80W 'LGC' (1627) AGRISOLUTIONS AURORA KA-3878 Prometryn Selectin Bis(isopropylamino)-6-(methylthio)-S-triazine 2,4-Bis(isopropylamino)-6-methylthio-1,3,5-triazine N,N'-Bis(1-methylethyl)-6-methylthio-1,3,5-triazine-2,4-diamine 6-(methylsulfanyl)-N,N'-di(propan-2-yl)-1,3,5-triazine-2,4-diamine sodium (3R,5R)-3,5-dihydroxy-7-[(1S,2S,6S,8S,8aR)-6-hydroxy-2-methyl-8-{[(2S)-2-methylbutanoyl]oxy}-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]heptanoate |
| CAS | 7287-19-6 |
| EINECS | 230-711-3 |
| InChI | InChI=1/C23H36O7.Na/c1-4-13(2)23(29)30-20-11-17(25)9-15-6-5-14(3)19(22(15)20)8-7-16(24)10-18(26)12-21(27)28;/h5-6,9,13-14,16-20,22,24-26H,4,7-8,10-12H2,1-3H3,(H,27,28);/q;+1/p-1/t13-,14-,16+,17+,18+,19-,20-,22-;/m0./s1 |
| InChIKey | AAEVYOVXGOFMJO-UHFFFAOYSA-N |
Prometryn - Physico-chemical Properties
| Molecular Formula | C10H19N5S |
| Molar Mass | 241.36 |
| Density | 1.157 |
| Melting Point | 118-120°C |
| Boling Point | 309.64°C (rough estimate) |
| Flash Point | 2°C |
| Water Solubility | 48.27mg/L(20 ºC) |
| Solubility | 6.3g/L in organic solvents at 20 ℃ |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | neat |
| Merck | 13,7881 |
| BRN | 613575 |
| pKa | 3.76±0.41(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,2-8°C |
| Refractive Index | 1.5500 (estimate) |
| MDL | MFCD00055396 |
| Physical and Chemical Properties | density 1.157 |
| Use | It is a selective herbicide, which is used to weed cotton and bean fields before and after Bud |
Prometryn - Risk and Safety
| Risk Codes | R11 - Highly Flammable R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36 - Irritating to the eyes R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R20 - Harmful by inhalation |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 1648 3/PG 2 |
| WGK Germany | 2 |
| RTECS | XY4390000 |
| HS Code | 29336990 |
| Toxicity | LD50 orally in rats: 3.75 g/kg (Geigy); LC50 (96 hour) in bluegill sunfish, rainbow trout (ppm): 10.0, 2.5 (Tweedy, Kahrs) |
Prometryn - Upstream Downstream Industry
| Raw Materials | Methanethiol,sodium salt Sodium sulfide propazine Cyanuric chloride Sodium hydroxide Isopropylamine |
Prometryn - Nature
Open Data Verified Data
pure white crystals. mp118 ~ 120 ℃, the vapor pressure is 1. 33 × 10-4Pa. Soluble in organic solvents. 20 deg C in water solubility 48mg/L. Non-flammable, non-explosive, non-corrosive. The original medicine is gray-white or beige powder, the melting point is 113~115 ℃, there are bad eggs.
Last Update：2025-06-10 22:55:16
Prometryn - Preparation Method
Open Data Verified Data
2-chloro -4.6-= propylamino-s-triazine was obtained from the reaction of cyanuric chloride with isopropylamine under alkaline conditions. The compound is reacted with sodium sulfide via a "mercaptobridge" reaction to generate disulfide, and then reacted with sodium hydroxide via air oxidation to generate a corresponding compound containing sodium mercapto group, and finally reacted with dimethyl sulfate to synthesize chlorphenamine.
Last Update：2022-01-01 10:13:02
Prometryn - Introduction
The vapor pressure at 20 ℃ is 1.33 × 10-7kPa. The solubility in water at 20 ℃ is 48ppm, which is easily soluble in organic solvents. Stable at room temperature.
Last Update：2022-10-16 17:28:12
Prometryn - Application
Open Data Verified Data
A dual-use selective S-triazine herbicide in water drylands, which has a role of absorption through the roots and can also penetrate into the plants from the stems and leaves and be transported to the green leaves to inhibit photosynthesis, the weeds died of loss of green and dry. The effective period is up to 20~70 days, which is suitable for rice, wheat, soybean, cotton, sugarcane, fruit trees, vegetables and other crops, and is used to control annual Broad-leaved weeds, grasses, Cyperus and some perennial weeds. Such as Magang, settail grass, Humulus, duck tongue grass, Save Grass, motherwort and other and perennial eye vegetables, such as the grass.
Last Update：2025-08-19 16:24:40
Prometryn - Safety
Open Data Verified Data
The oral LD50 of rats was 3150-3750mg/kg. Rabbit percutaneous LD50 >10200mg/kg, rats fed for 2 years no effect dose of 1250mg/kg, carp LC50 8~9mg/L (96H), low toxicity to birds.
Last Update：2022-01-01 10:13:03
Prometryn - Reference Information
| LogP | 3.1 at 25℃ |
| 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 3150-3750mg/kg, and acute percutaneous LD50 of rabbits was> 10200mg/kg. Rats fed for 2 years had no effect at a dose of 1250mg/kg per day. Carp LC508 ~ 9mg/L (96H). Low toxicity to birds. |
| Use | selective S-triazine herbicides for dual-use in water and dryland. Has the function of internal absorption conduction. Can be absorbed from the roots, but also from the stems and leaves into the plant, transport to the green leaves to inhibit photosynthesis, the weeds are green and dry. The effective period is up to 20~70 days, which is suitable for rice, wheat, soybean, cotton, sugarcane, fruit trees, vegetables and other crops, and is used to control annual Broad-leaved weeds, grasses, Cyperus and some perennial weeds, such as Magang, settail grass, Humulus, duck tongue grass, Save Grass, motherwort and other and perennial eye vegetables, such as the grass. To control weeds in paddy field, 5 ~ 7d after transplanting rice, 50% wettable powder 3~6g/100 m2 was used in the southern region, and 9.8~15g/100 m2 was used in the northern region, mix 3 ~ 4.5kg of wet fine soil for application. Field water layer 3 ~ 5cm, water retention about 10d. Control of Weeds in dry land, cotton, peanut, Soybean sowing before or after sowing, with 50% wettable powder 15~22. 5g/100m 2, of water on the surface of the soil spray. is a selective herbicide, used in cotton, bean field pre-and post-emergence herbicide mainly used in rice, wheat, Orchard, it has a good control effect on annual weeds It is a better herbicide used in water and dry fields, which can effectively control many kinds of year-old weeds and perennial malignant weeds, such as Malang, Setaria, Humulus, duck tongue grass, save the grass, and other maimian, as well as some Cyperaceae weeds. Suitable crops are rice, wheat, soybean, cotton, sugar cane, fruit trees, etc, Can also be used for vegetables, such as celery, coriander and so on. |
| production method | cyanuric chloride is reacted with isopropylamine under alkaline conditions, and the product is then methylated with sodium sulfide and dimethyl sulfate, that is, the preparation of the grass. Raw material consumption quota: cyanuric chloride (98%)950kg/t, isopropylamine (98%)650kg/t, alkali sulfide (63%)610kg/t, dimethyl sulfate (98%)660kg/t. The product was synthesized by Sulfidation reaction, using the compound as an intermediate. The synthesis of dipyridamole is also a kind of Triazine herbicide, and the chemical name is 2-chloro-4, 6-diisopropylamino S-triazine. The reaction of cyanuric chloride with isopropylamine under alkaline conditions. Operation process: at less than 5 ℃, put a certain amount of cyanuric chloride and 4 times the amount of water in the reaction pot, after stirring and dissolving, control 0~10 ℃, uniform drop and metering of isopropylamine, the mixture was heated to 15-30 ℃, added with metered amount of alkali, reacted at 35 ℃ for 2H, and finally made the material alkaline, centrifuged and washed with water until neutral, for use in the next reaction. The synthetic intermediate of chlorpromazine reacts with sodium sulfide through a "mercapto bridge" to generate disulfide, and then reacts with sodium hydroxide through air oxidation to generate the corresponding compound containing sodium mercapto, finally, it was synthesized by reaction with dimethyl sulfate. Operation process: add an appropriate amount of water into the reaction kettle and measure the dissolved sodium sulfide and sulfur aqueous solution, and then put a certain amount of quenching fluid under stirring to raise the temperature to 100~105 ℃, react for 5H, then add a certain amount of liquid alkali, continue to react for 1H, and enter air oxidation, react for 5h at 100 ℃, end the oxidation and cool, uniformly add metered amount of dimethyl sulfate at 60 ℃, control the temperature not to exceed 65 ℃, reaction 45min, and then continue the reaction at 65~70 ℃ for 2H, after cooling, centrifugal separation, water washing, drying, to get the grass. |
| category | pesticide |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 2100 mg/kg; Oral-mouse LD50: 2138 mg/kg |
| stimulation data | eyes-rabbits 80 mg mild |
| flammability hazard characteristics | toxic nitrogen oxide 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 |
| Occupational Standard | TLV-TWA 5 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:11
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Raw Materials for Prometryn