Registration Dossier
Registration Dossier
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EC number: 270-790-1 | CAS number: 68478-10-4 A complex combination of hydrocarbons obtained by the distillation of debenzenized light steam-cracked naphtha. It consists predominantly of cyclic olefinic and aromatic hydrocarbons having carbon numbers predominantly in the range of C8 through C16 and boiling in the range of approximately 130°C to 300°C (226°F to 572°F).
Endpoint summary
Administrative data
Description of key information
Additional information
Data is available from standard ready biodegradation screening studies to demonstrate that benzene is readily biodegradable. Shell (2000) and Brixham Environmental Laboratory (2001) both report results from OECD 301F tests which showed that benzene met the criteria to be classed as readily biodegradable. This was also the conclusion reached in the EU RAR for benzene (2008).
One of the screening criteria for persistence in the PBT assessment is that if a substance is considered to be readily biodegradable the substance is screened as being not P and not vP. Experimental data from standard biodegradation screening tests are available for benzene. The data indicate that benzene can be considered readily biodegradable (Shell, 2000). Therefore, based on the screening criteria for persistence stipulated in ECHA’s Guidance on information requirements and chemical safety assessment - Part C: PBT Assessment (2008c) benzene is not considered to be persistent (P) or very persistent (vP).
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