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EC number: 202-589-1 | CAS number: 97-53-0
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
- Endpoint:
- long-term toxicity to aquatic invertebrates
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- 07-2022
- Reliability:
- 1 (reliable without restriction)
- 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
ECOSAR
2. MODEL (incl. version number)
v2.2
3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
COc1cc(CC=C)ccc1O
See other input values in the QPRF attached.
4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
See detailed information in QPRF/QMRF attached.
5. APPLICABILITY DOMAIN
See detailed information in QPRF/QMRF attached.
6. ADEQUACY OF THE RESULT
See detailed information in QPRF/QMRF attached. - Qualifier:
- no guideline required
- Principles of method if other than guideline:
- see filed "Justification for type of information"
- Analytical monitoring:
- yes
- Remarks:
- Data included in ECOSAR are based on measured test concentrations maintained at greater than 80% of nominal concentrations.
- Test organisms (species):
- Daphnia sp.
- Test type:
- other: Semi-static or flow-through
- Water media type:
- freshwater
- Total exposure duration:
- 21 d
- Hardness:
- < 150 mg CaCO3/L
- pH:
- 6-8
- Key result
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 7.07 mg/L
- Nominal / measured:
- meas. (not specified)
- Conc. based on:
- act. ingr.
- Details on results:
- The results are based on the Neutral Organics equation of ECOSAR as the prediction based on the Phenol equation is not reliable.
- Validity criteria fulfilled:
- yes
- Remarks:
- Applicability domain of the QSAR model respected.
- Conclusions:
- The daphnia 21-d NOEC is predicted to be 7.07 mg/L.
- Executive summary:
The daphnia 21-d NOEC was predicted using the software ECOSAR v2.2. The predictions based on the equation for phenols and the equation for neutral organics. Due to the unreliability linked to the prediction derived from the phenol model, the neutral organics equation was selected. The results indicate that the NOEC is 7.07 mg/L. The calculation is reliable, validated and the substance properties fall within the applicability domain of the QSAR.
Reference
Description of key information
QSAR ECOSAR, 2022, K
21-d NOECdaphnia = 7.07 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Dose descriptor:
- NOEC
- Effect concentration:
- 7.07 mg/L
Additional information
One QSAR is avaible to assess the chronic toxicty of the registered substance to aquatic invertebrate.
The daphnia 21-d NOEC was predicted using the software ECOSAR v2.2. The predictions based on the equation for phenols and the equation for neutral organics. Due to the unreliability linked to the prediction derived from the phenol model, the neutral organics equation was selected. The results indicate that the NOEC is 7.07 mg/L. The calculation is reliable, validated and the substance properties fall within the applicability domain of the QSAR.
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