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
Although this endpoint can be waived experimental data are available, so are reported here. The reported results show that benzene has a low to moderate bioaccumulation potential when considering data for individual organs. The highest available BCF for whole fish were <10 for Leuciscus idus measured by Freitag et al. (1985) and 11 for Clupea harrengus measured by Eldridge and Echeverria (1978). These values are very similar to the BCF of 13 calculated based on the measured log Kow of 2.13 using the equation recommended in the Technical Guidance Document (Veith et al., 1979).
The measured log Kow of 2.13 indicates that benzene does not exceed the screening criteria for bioaccumulation stipulated in ECHA’s Guidance on information requirements and chemical safety assessment - Part C: PBT Assessment (2008c). Therefore, benzene is not considered to be bioaccumulative (B) or very bioaccumulative (vB).
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