Registration Dossier
Registration Dossier
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EC number: 601-490-4 | CAS number: 117704-25-3
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 µg/L
- Assessment factor:
- 10 000
- 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:
- 0.36 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.036 µg/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:
- 0.072 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Aquatic toxicity:
Short-term toxicity to fish:
A study on rainbow trout resulted in 96 -hour LC50 value of 0.0051 mg/L and NOEC value of 0.0025 mg/L (Collins, 1992).
Short-term toxicity to daphnia:
A study on Daphnia magna resulted in 48 -hour EC50 value of 0.0001 mg/L and NOEC value of 0.000025 mg/L (Collins, 1992).
Toxicity to aquatic algae:
One algae study resulted in 96 -hour NOEC value of 0.026 mg/L (Giddings, 1992).
Toxicity to microorganisms:
A microbial growth inhibition study on five strains resulted a series of MIC values ranged from 40 to 800 mg/L (Smith, 1992).
Terrestrial toxicity:
Toxicity to soil macroorganisms:
A study on Earthworms resulted in NOEC value of 0.89 mg/kg soil dw (Boeri, 2002).
Conclusion on classification
All aquatic LC50s (or EC50s) < 1 mg/L (actual values: fish 96h LC50=0.0051 mg/L; daphnia 48h EC50=0.0001 mg/L).
No chronic toxicity data available; substance is not readily biodegradable.
Therefore in accordance with Regulation (EU) No. 286/2011 (as amended by Regulation (EC) No. 286/2011) Table 4.1.0, this substance should be classified as Acute category 1 and Chronic category 1. R50/53 under Directive 67/548/EEC is warranted.
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