Registration Dossier
Registration Dossier
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EC number: 916-331-7 | CAS number: -
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Based on estimation with the QSAR model AOPWIN, (version 4.10, EpiSuite 2013, CC(C)C(=O)OC3CC1CC3C2CC=CC12), Cyclabute undergoes in air rapid degradation after reaction with hydroxyl radicals or ozone. The DT50 values of the substance after reaction with hydroxyl radicals and ozone are 1.9 hours and 1.4 hours, respectively. This estimated half-life time is much shorter than 2 days, which is the cut off time for reaching the stratosphere. Cyclabute is therefore not expected to reach the stratosphere and is not a long-range transported chemical in air. Cyclabute does not have an ozone depletion potential. Besides this information the substance does not contain halogens in accordance with EU CLP (EC, 1272/2008 and its amendments).
Key value for chemical safety assessment
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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