Prometrin , a chemical compound from the group of triazines, is a thiomethyl analog of the herbicide propazine .
| Prometrine | |
|---|---|
 | |
| Are common | |
| Systematic name | 6-methylsulfanyl-2-N, 4-N-di (propan-2-yl) -1,3,5-triazin-2,4-diamine |
| Chem. formula | C 10 H 19 N 5 S |
| Physical properties | |
| Molar mass | 241.36 g / mol |
| Density | 1,157 g / cm³ |
| Thermal properties | |
| T. melt. | 119 ° C |
| T. Kip. | > 300 ° C |
| Steam pressure | 0.165 mPa [1] |
| Chemical properties | |
| pK a | 4.05 [2] [3] |
| Water solubility | practically insoluble |
| Classification | |
| Reg. CAS number | |
| Pubchem | |
| Reg. EINECS number | |
| SMILES | |
| Inchi | |
| CHEBI | |
| Chemspider | |
| Security | |
| LD 50 | 2100 mg · kg −1 (rat, oral) [3]
|
| R-phrases | R20 , R50 / 53 |
| S-phrases | S60 , S61 |
| H-phrases | H332 , H400 |
| P-phrases | P273 |
| GHS pictograms |   |
Content
Getting
Promethrin is obtained by the reaction of 2-chloro-4,6-bis (isopropylamine) -S- triazine with sodium methylthiolate or by the reaction of propazine with methanethiol in the presence of sodium hydroxide [2] [4] .
Characteristics
Flammable, colorless, odorless solid, insoluble in water. Resistant to hydrolysis at 20 ° C in neutral, slightly acidic or slightly alkaline conditions, but hydrolyzed by hot acids and alkalis. Decomposes when exposed to ultraviolet [2] .
Use
Prometrin is used as a plant protection product [5] . He was in the United States in 1964 as a herbicide for weed control of such crops as cotton , celery , pigeon peas and dill [6] . The effect is based on the inhibition of photosynthesis by inhibiting photosystem II [7] .
Statement
Prometrin is not included in the list of approved ingredients of plant protection products of the European Union [8] . In Germany, Austria and Switzerland there are currently no plant protection products containing this substance [9] .
Links
Notes
- ↑ MUK 4.1.2025-05 Methodological guidelines for the determination of residues of Prometrin in pea grain, soybean oil, corn and sunflower by gas-liquid chromatography
- 2 1 2 3 Eintrag zu PROMETRYNE in der Hazardous Substances Data Bank , abgerufen am 26.
- 2 1 2 3 Datenblatt Prometryn, PESTANAL bei Sigma-Aldrich , abgerufen am 26. Juni 2012 ( PDF ).
- ↑ Thomas A. Unger. Pesticide Synthesis Handbook . - William Andrew, 1996. - p. 656. - ISBN 0-81551853-6 .
- ↑ Record of CAS RN 7287-19-6 in the GESTIS Substance Database of the IFA .
- ↑ EPA: Reregistration of Eligibility Decision (RED) - Prometryn (PDF; 548 kB)
- Overview of Case Study - Prometryn (PDF; 4.0 MB)
- ↑ Verordnung (EG) Nr. 2076/2002 der Kommission vom 20.
- ↑ Generaldirektion Gesundheit und Lebensmittelsicherheit der Europäischen Kommission: Eintrag zu Prometryn in der EU-Pestiziddatenbank ; Eintrag in den nationalen Pflanzenschutzmittelverzeichnissen der Schweiz , Österreichs Archival copy of April 22, 2016 on the Wayback Machine und Deutschlands ; abgerufen am 12.