Substance profile
Esfenvalerate
Esfenvalerate is a white crystalline solid.
01 · Identification
What Esfenvalerate is
Esfenvalerate is a white crystalline solid. Its molecular formula is C25H22ClNO3 and its molecular weight is 419.9 g/mol. It boils at 159 °C, melts at 59.6 °C.
Under the GHS it carries the signal word Danger.
Other names for Esfenvalerate
- esfenvalerate (ISO)
- (S)-α-cyano- 3-phenoxybenzyl-(S)- 2-(4-chlorophenyl)- 3-methylbutyrate
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H331 | Toxic if inhaled. |
| H301 | Toxic if swallowed. |
| H370 | Causes damage to organs <or state all organs affected, if known> <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P261, P270, P271, P272, P273, P280, P301, P304, P308, P310, P311, P313, P314, P330, P333, P391, P501
03 · Physical and chemical properties
Esfenvalerate properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 159 °C (318.2 °F) | range, midpoint shown | HSDB |
| Melting point | 59.6 °C (139.3 °F) | range, midpoint shown | HSDB |
| 59.5 °C (139.1 °F) | range, midpoint shown | ICSC | |
| Density | 1.26 g/cm³ | HSDB | |
| 1.2 g/cm³ | ICSC | ||
| Solubility | In acetone, chloroform, methanol >450, hexane 77 (all in g/L at 20 °C; distilled water <20 ug/L (all at 20 °C) | at 20 °C | HSDB |
| In xylene, acetone, chloroform, ethyl acetate, dimethylformamide, dimethyl sulfoxide >600, hexane 10-50, methanol 70-100 (all in g/kg, 25 °C) | at 25 °C | HSDB | |
| Vapor pressure | 1.5e-9 mmHg | at 25 °C | HSDB |
| Vapor pressure at 20 °C: negligible | at 20 °C | ICSC | |
| Flash point | 256 °C (492.8 °F) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on Esfenvalerate
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Solubility
Solubility (1%): acetonitrile >60, chloroform >60, DMF >60, DMSO >60, ethyl acetate >60, acetone >60, ethyl cellosolve 40-50, n-hexane 1-5, kerosene <1, methanol 7-10, alpha-methylnaphthalene 50-60, xylene >60.
Source: HSDB
05 · Handling and storage
Storing and handling Esfenvalerate
Storage conditions
Store in original container.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatibility: Strong oxidizers. /Pyrethrins/
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check Esfenvalerate in the storage compatibility matrix →