67375-30-8
Product Name:
alpha-Cypermethrin
Formula:
C22H19Cl2NO3
Synonyms:
α-metherin;Alphamethrin
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | An emulsifiable concentrate or wettable powder composed of a mixture of eight different isomers; [EXTOXNET] |
|---|---|
| Color/Form | Viscous semi-solid |
| Odor | Odorless |
| Melting Point | 70 °C |
| Solubility | Soluble in methanol, acetone, xylene, dichloromethane |
| Density | 1.25 g/cu cm at 20 °C |
| Vapor Density | 1.25 |
| Vapor Pressure | 1.7X10-9 mm Hg at 20 °C |
| LogP | log Kow = 6.60 |
| Stability/Shelf Life | Relatively stable in neutral & weakly acidic media, with optimum stability at pH 4. Hydrolyzed in alkaline media. Relatively stable to light in field situations. Thermally stable up to 220 °C. |
| Decomposition | When heated to decomp it emits toxic fumes of /cyanide, nitrogen oxides, chloride/. |
| Corrosivity | Non-corrosive to metals |
| Collision Cross Section | 200.6 Ų [M+Na]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards] |
| Kovats Retention Index | 2755 2815 2784 2825 2767.5 2790.9 2775.2 2747.6 2758.6 2768.4 2772.8 |
| Other Experimental Properties | Yellow-brown viscous semi-solid /Technical/ |
| Chemical Classes | Pesticides -> Pyrethrins/Pyrethroids |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H301:Acute toxicity,oral H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P273:Avoid release to the environment. P314:Get medical advice/attention if you feel unwell. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
COMPUTED DESCRIPTORS
| Molecular Weight | 416.3 g/mol |
|---|---|
| XLogP3 | 6 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 7 |
| Exact Mass | 415.0741989 g/mol |
| Monoisotopic Mass | 415.0741989 g/mol |
| Topological Polar Surface Area | 59.3 Ų |
| Heavy Atom Count | 28 |
| Formal Charge | 0 |
| Complexity | 643 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 3 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Cypermethrin is a carboxylic ester resulting from the formal condensation between 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid and the alcoholic hydroxy group of hydroxy(3-phenoxyphenyl)acetonitrile. It has a role as a pyrethroid ester insecticide, a pyrethroid ester acaricide, an agrochemical and a molluscicide. It is an organochlorine compound, a nitrile, an aromatic ether and a cyclopropanecarboxylate ester. It is functionally related to a 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid.