Substance profile
2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl[1R-[1α[S*(Z)](3β)]]-3-(3-methoxy-2-methyl-3-oxoprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate
2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl[1R-[1α[S*(Z)](3β)]]-3-(3-methoxy-2-methyl-3-oxoprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate is a viscous liquid.
01 · Identification
What 2-methyl-4-oxo-3-(penta-2,4-di… is
2-methyl-4-oxo-3-(penta-2,4-dienyl)cyclopent-2-enyl[1R-[1α[S*(Z)](3β)]]-3-(3-methoxy-2-methyl-3-oxoprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate is a viscous liquid. Its molecular formula is C22H28O5 and its molecular weight is 372.5 g/mol. It is soluble in water.
Under the GHS it carries the signal word Warning.
Other names for 2-methyl-4-oxo-3-(penta-2,4-di…
- pyrethrin II
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 |
|---|---|
| H332 | Harmful if inhaled. |
| H312 | Harmful in contact with skin. |
| H302 | Harmful if swallowed. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P270, P271, P273, P280, P301, P302, P304, P312, P330, P352, P391, P501
03 · Physical and chemical properties
2-methyl-4-oxo-3-(penta-2,4-di… 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 | 200 °C (392 °F) | decomposes, at 0.1 mmHg (reduced pressure) | HSDB |
| Solubility | Soluble in ethanol, ether, carbon tetrachloride | HSDB | |
| Soluble in petroleum ether (less sol than pyrethrin I), kerosene, ethylene dichloride, nitromethane | HSDB | ||
| In water, 9.0 mg/L (temperature not specified) | HSDB | ||
| Vapor pressure | 3.98e-7 mmHg | at 25 °C | HSDB |
| 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 2-methyl-4-oxo-3-(penta-2,4-di…
Storage conditions
Pyrethrins with piperonyl butoxide topical preparations should be stored in well-closed containers at a temperature less than 40 °C, preferably between 15-30 °C. /Pyrethrins/
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
... Incompatible with lime and ordinary soaps because acids & alkalies speed up processes of hydrolysis. /Pyrethrins/
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check 2-methyl-4-oxo-3-(penta-2… in the storage compatibility matrix →