Registration Dossier
Registration Dossier
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EC number: 248-502-0 | CAS number: 27503-81-7
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- (Q)SAR
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- results derived from a (Q)SAR model, with limited documentation / justification
- Justification for type of information:
- QSAR prediction
- GLP compliance:
- no
- Computational methods:
- Log KOC has been estimated by KOCWINv2 using EPI Suite™ (2000) software.
- Key result
- Type:
- Koc
- Value:
- 1 985.3 L/kg
- Remarks on result:
- other: Mean value of MCI and Log Kow method
- Key result
- Type:
- log Koc
- Value:
- 3.3 L/kg
- Remarks on result:
- other: Mean value of MCI and Log Kow method
- Type:
- Koc
- Value:
- 3.452 L/kg
- Remarks on result:
- other: Koc estimate from Log Kow method
- Type:
- Koc
- Value:
- 518.6 L/kg
- Remarks on result:
- other: Koc estimate from MCI method
- Conclusions:
- A Koc of 1985.3 L/kg (log Koc = 3.3) was estimated via KOCWIN.
Therefore the criteria for M/vM are not fulfilled. - Endpoint:
- adsorption / desorption: screening
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance has a low octanol water partition coefficient and the adsorption potential of this substance is related to this parameter
Referenceopen allclose all
Description of key information
No additional testing is necessary due to the low log Kow of -1.42.
Key value for chemical safety assessment
- Koc at 20 °C:
- 1 985.3
Additional information
In accordance with Regulation (EC) No 1907/2006, Annex IX, column 2, the study does not need to be conducted if based on the physicochemical properties the substance can be expected to have a low potential for adsorption (e.g. the substance has a low octanol-water partition coefficient). The log Kow of the substance is < 3. The experimental log Kow (-1.42) is showing that this substance has a low potential for adsorption.
Due to the low log Kow (-1.42) of the test substance the adsorption potential to soil and sediments is low and no additional testing is necessary.
A QSAR calculation (KOCWIN) was done. It resulted in a Koc of 1985.3 / log Koc of 3.3 (mean of MCI and log Kow Method). This shows that the criteria for M and vM are not fulfilled.
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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