Registration Dossier
Registration Dossier
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EC number: 293-261-7 | CAS number: 91052-99-2 A complex combination of hydrocarbons obtained from distillation of the butadiene-free C4 fraction of a naphtha steam-cracking process. It consists predominantly of branched olefinic hydrocarbons having carbon numbers of C8, C12, C16 and C20 and boiling in the range of approximately 105°C to 120°C (221°F to 248°F).
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The terrestrial toxicity was predicted by a QSAR, the PETROTOX v4.0 computer model. PETROTOX is a well-documented and peer reviewed model that is widely used across the chemicals industry. The predicted EL50 values for Nitrobacter ranged from 3379 to 19823736 mg/kg soil dw. The predicted EL10 values for Nitrobacter ranged from 647 to 3797650 mg/kg soil dw.
Key value for chemical safety assessment
Additional information
| Species | Carbon No. | LL50 / EL50 (mg/kg_dw) | EL10 (mg/kg_dw) |
| Nitrobacter | C8 | 3379 | 647 |
| Nitrobacter | C12 | 91426 | 17515 |
| Nitrobacter | C16 | 19823736 | 3797650 |
| Nitrobacter | C20 | 19823736 | 3797650 |
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