Registration Dossier
Registration Dossier
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EC number: 242-060-2 | CAS number: 18172-67-3
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The adsorption coefficient (log Koc) was estimated by three QSAR models:
- KOCWIN v2.00 in EPI Suite (v4.0) - MCI method using log Kow
- KOCWIN v2.00 in EPI Suite (v4.0) - log Kow method
- A model described in Technical Guidance on Risk Assessment (European Chemicals Bureau, 2003) - Part III, Chapter 4, table 4, equation for non hydrophobic substances
The estimated Koc of (-)-beta-pinene is 3317 L/kg (geometric mean of three QSAR models: 1020 L/kg, 6850 L/kg and 2082 L/kg).
Key value for chemical safety assessment
- Koc at 20 °C:
- 3 317
Additional information
ECHA Guidance (chapter R.7.a,paragraph R.7.1.15) recommends to calculate the Koc endpoint value as the geometric mean of results obtained by means of QSAR models.
This geometric mean value is considered as the endpoint defining the substance potential for adsorption and can be used as input parameter for environmental risk assessment.
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