Registration Dossier
Registration Dossier
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EC number: 277-923-2 | CAS number: 74563-64-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 10 mg/kg food
- Assessment factor:
- 300
Additional information
No toxicity was observed in short-term toxicity tests in fish, Daphnia and algae. Therefore, PNECs have not been derived for water, sediment or soil.
A PNEC oral (secondary poisoning) has been derived as a worst-case assessment, as the logPow > 6.5 of the substance indicates a potential for bioaccumulation in aquatic species.
However, a predicted aquatic BCF value of 311 L/kg was obtained for the substance (from EPISUITE program BCFBAF v3.01), pointing to a low bioaccumulation potential.
Conclusion on classification
The substance is classified for the environment under the 'safety net' classification 'Chronic Category 4, H413: May cause long lasting harmful effects to aqautic life'.
No toxicity was observed in acute toxicity studies in fish, daphnia and algae.
The above classification may be applied as a worst-case based on the substance having a water solubility <1 mg/L, being biodegradable, but not being readily biodegradable and having a logPow > 4.
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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