Substance profile
Lambda-Cyhalothrin
Lambda-Cyhalothrin: colourless-to-beige solid (technical grade).
01 · Identification
What Lambda-Cyhalothrin is
Lambda-Cyhalothrin: colourless-to-beige solid (technical grade). Its molecular formula is C23H19ClF3NO3 and its molecular weight is 449.8 g/mol. It melts at 49.2 °C.
Under the GHS it carries the signal word Danger.
Other names for Lambda-Cyhalothrin
- lambda-cyhalothrin (ISO)
- reaction mass of (S)-α-cyano-3-phenoxybenzyl(Z)-(1R)-cis-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate and (R)-α-cyano-3-phenoxybenzyl (Z)-(1S)-cis-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate (1:1)
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 |
|---|---|
| H330 | Fatal if inhaled. |
| H301 | Toxic if swallowed. |
| H312 | Harmful in contact with skin. |
| 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, P310, P312, P330, P352, P391, P501
03 · Physical and chemical properties
Lambda-Cyhalothrin 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 |
|---|---|---|---|
| Melting point | 49.2 °C (120.6 °F) | ICSC | |
| Density | 1.3 g/cm³ | ICSC | |
| Solubility | Solubility in water: none | ICSC | |
| Vapor pressure | Vapor pressure, Pa at 20 °C: | at 20 °C | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.