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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
bioaccumulation in aquatic species, other
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
1. SOFTWARE: VEGA NIC 1.1.1
2. MODEL: BCF model (CAESAR) 2.1.14
3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL: COC(=O)C1=C(C(=CC=C1)[N+](=O)[O-])C(=O)O
4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL: Yes
5. APPLICABILITY DOMAIN: The compound is in the applicability domain of the model.
Qualifier:
according to guideline
Guideline:
other: REACH guidance on QSARs R6, May 2008
Principles of method if other than guideline:
General model for estimating the BCF.
Key result
Type:
BCF
Value:
3 L/kg
Remarks on result:
other: Predicted BCF [L/kg]: 3
Details on results:
Prediction is 0.41 log(L/kg), the result appears reliable:
- the predicted compound is into the Applicability Domain of the model
- strongly similar compounds with known experimental value in the training set have been found
- accuracy of prediction for similar molecules found in the training set is good
- similar molecules found in the training set have experimental values that agree with the predicted value
- the maximum error in prediction of similar molecules found in the training set has a low value, considering the experimental variability
- descriptors for this compound have values inside the descriptor range of the compounds of the training set
- all atom centered fragment of the compound have been found in the compounds of the training set.
Conclusions:
Predicted BCF [L/kg]: 3.
Executive summary:

The BCF value was estimated using BCF model (CAESAR) 2.1.14. This is a valid model for this substance which falls into its applicability domain as explained in the attached reports. The predicted BCF value is 3 L/kg.

Description of key information

The BCF value was estimated using BCF model (CAESAR) 2.1.14. This is a valid model for this substance which falls into its applicability domain as explained in the attached reports. The predicted BCF value is 3 L/kg.

Key value for chemical safety assessment

BCF (aquatic species):
3 L/kg ww

Additional information