Registration Dossier
Registration Dossier
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EC number: 622-542-2 | CAS number: 3891-98-3
Endpoint summary
Administrative data
Description of key information
Farnesane is a clear, colourless liquid with slight paraffinic odour. It is of low viscosity (3.53 mm2/s at 20°C) and has a relative density of 0.7735 at 15 °C. It is not a flammable liquid (flash point -110 °C, boiling point - 199 °C), has a vapour pressure of 89.3 Pa (20 °C) and an auto-ignition point of 197 °C. Farnesane is insoluble in water (0.25 µg/L) and it has a measured Log Kow value >7.20 - see individual endpoint study records and endpoint summaries.
Additional information
Additional detail regarding viscosity study is provided below since this is the basis for classification as an Aspiration Hazard Category 1, H 304.
The dynamic viscosity was determined to be 2.73 mPa/S at 20°Cand the kinematic viscosity was calculated using the relative density (0.7735) to be 3.53 mm2/s at 20oC at 20°C.
Based on the following classification criteria, the test substance is to be classified as an aspiration hazard category 1. Aspiration category 1 : Substances known to cause human aspiration toxicity hazards or to be regarded as if they cause human aspiration toxicity hazard. A substance is classified in Category 1: (a) based on reliable and good quality human evidence or (b) if it is a hydrocarbon and has a kinematic viscosity of 20.5 mm²/s or less, measured at 40°C.
The viscosity was measured 20°C, not 40°C. Considering that the substance is a hydrocarbon and that viscosity decreases with increasing temperature the classification of aspiration hazard is justified since the viscosity at 40°Cwill be < 20.5 mm²/s.
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