Registration Dossier
Registration Dossier
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EC number: 921-577-3 | CAS number: 1174918-60-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
The hydrocarbon block method has been used for environmental risk assessment (see REACH guidance, R7, app.13-1). Aquatic PNECs for hydrocarbon blocks have been derived using the HC5 statistical extrapolation method and the target lipid model using representative structures. See Product Library tab in PETRORISK spreadsheet attached to IUCLID Section 13. Given the large database of freshwater organisms included in the target lipid model, an assessment factor of one has been applied to the HC5.
Conclusion on classification
The ecotoxicological data available indicate that n-pentane, 2 -methylbutane and hydrocarbons C5 can be classified as chronic category 2 with the hazard statement "toxic to aquatic organisms; may cause long term adverse effects in the aquatic environment" and cyclopentane can be classified as chronic category 3 with the hazard statement "harmful to aquatic organisms; may cause long term adverse effects in the aquatic environment". These classifications have been agreed by the consortium to represent the respective substances.
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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