Registration Dossier
Registration Dossier
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EC number: 282-823-7 | CAS number: 84434-23-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Environmental classification and labelling of a substance is generally based on data from short-term aquatic toxicity results, the ready biodegradability of the substance and the measured octanol/water partition coefficient.
The estimated log Kow of p-tert-butylcinnamaldehydeis 3.73 using the calculation software KOWWIN v. 1.68 (EPISuite v 4.1). The substance is expected to be readily biodegradable and to have acute L(E)C50 values in the range of >1 to ≤ 10 mg/L, based on read-across from the structurally related analogue,3-(4-tert-butylphenyl)propionaldehyde.
Based on the above information,p-tert-butylcinnamaldehyde is considered to be classified as R51/53 according to Directive 67/548/EEC (DSD). The substance is not classified according to Regulation 1272/2008/EC (CLP) since the estimated log Kow is < 4.
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