Registration Dossier
Registration Dossier
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EC number: 692-731-2 | CAS number: 76950-43-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.09 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.896 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.009 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.327 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.033 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.013 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Degradation
Biodegradation: not readily biodegradable: 2% after 28 d (OECD 301C)
Bioaccumulation
Log Kow: < 0.3 (OECD 117)
Aquatic toxicity
96 h, LC50 (Oryzias latipes): > 100 mg/L (nominal), > 94.5 mg/L (measured)
48 h, EC50 (Daphnia magna): > 100 mg/L (nominal), > 91.3 mg/L (measured)
72 h, ErC50 (Pseudokirchnerialla subcapitata): > 100 mg/L (nominal), > 89.6 mg/L (measured)
72 h, NOEC (Pseudokirchnerialla subcapitata): 9.5 mg/L (nominal), 4.56 mg/L (measured)
Classification according to CLP
Based on the data above, the acute aquatic toxicity L(E)C50 is > 1 mg/L. The test substance does not need to be classified and labeled as acute aquatic hazard according to the 2nd ATP of the Regulation (EC) No. 1272/2008 (CLP).
Chronic aquatic toxicity data are available for algae. Based on the NOEC (72 h) of 4.56 mg/L (measured) which is > 1 mg/L the test substance which is not readily biodegradable does not need to be classified and labeled as chronic aquatic hazard according to the 2nd ATP of the Regulation (EC) No. 1272/2008 (CLP).
Classification according to DSD
Based on the data above, the test substance is considered to be not rapidly degradable and has low potential for bioaccumulation. The acute aquatic toxicity endpoints for fish, daphnids and algae are > 1 mg/L. Thus, the test substance does not need to be classified and labeled according to Directive 67/548/EEC.
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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