Registration Dossier
Registration Dossier
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EC number: 447-010-5 | CAS number: 670241-72-2 ISONONYLBENZOAT
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.004 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 2.724 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.272 mg/kg sediment dw
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.32 mg/kg soil dw
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 0.067 g/kg food
- Assessment factor:
- 90
Additional information
Conclusion on classification
Isononyl benzaote is readily biodegradable and was tested for potential toxicity towards aquatic organisms in fish (acute and chronic toxicity), daphnia (acute and chronic toxicity) and algae (acute/chronic toxicity). The test item is poorly soluble in water and in the acute toxicity studies no adverse effects on the exposed organisms were recorded up to the solubility limit. In the reproduction test with invertebrates (daphnia), no motrality or adverse effects on reproduction rate were observed. The NOEC (21 d) was >= 0.078 mg/L and constitutes the limit of solubility of the test substance under the test coniditions. In the chronic fish toxicity study (Zebra fish early life stage, 28 days post hatch), significant effects at the nominal dosage level 0.25 mg/L were observed and a overall NOEC of of 0.125 mg/L (nominal) and 0.0428 mg/L (mean measured) has been derived. Therefore, the test substance needs to be classified as toxic to aquatic organisms with long lasting effects, category 2 (H411) according to CLP and UN-GHS regulation.
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