Substance profile
Tetramethrin
Tetramethrin is a white crystalline solid with a slight pyrethrum-like odor.
01 · Identification
What Tetramethrin is
Tetramethrin is a white crystalline solid with a slight pyrethrum-like odor. Its molecular formula is C19H25NO4 and its molecular weight is 331.4 g/mol. It melts at 69 °C.
Under the GHS it carries the signal word Warning.
Other names for Tetramethrin
- tetramethrin (ISO)
- (1,3-dioxo-1,3,4,5,6,7-hexahydro-2H-isoindol-2-yl)methyl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate
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 |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H302 | Harmful if swallowed. |
| H371 | May cause 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>. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P201, P260, P270, P273, P280, P301, P308, P311, P312, P313, P330, P391, P501
03 · Physical and chemical properties
Tetramethrin 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 | 185 °C (365 °F) | range, midpoint shown, at 0.1 mmHg (reduced pressure) | HSDB |
| Melting point | 69 °C (156.2 °F) | range, midpoint shown | HSDB |
| 70 °C (158 °F) | range, midpoint shown | HSDB | |
| Density | 1.11 g/cm³ | ICSC | |
| 1.1 g/cm³ | ICSC | ||
| 1.108 g/cm³ | at 20 °C | HSDB | |
| Solubility | Methanol (53 g/kg), hexane (20 g/kg), xylene (1 g/kg), acetone, toluene. | HSDB | |
| In acetone, ethanol, methanol, hexane, n-octanol all >2 g/100 mL | HSDB | ||
| In water, 1.83 mg/L at 25 °C. | at 25 °C | HSDB | |
| Vapor pressure | 0.075 mmHg | at 20 °C | ICSC |
| 0.0000071 mmHg | at 30 °C | HSDB | |
| 0.00000708 mmHg | Haz-Map | ||
| Corrosivity | Non-corrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Tetramethrin
Storage conditions
Ventilate well. Store in closed drum in a cool, dry place.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatible with mineral carriers such as kieselguhr, acidic clays and kaolin.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
A pyrethroid. This compound is an ester and nitrile. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Tetramethrin in the storage compatibility matrix →