Registration Dossier
Registration Dossier
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EC number: 809-896-5 | CAS number: 60435-70-3
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.2 mg/L
- Assessment factor:
- 5
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.02 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 55.5 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 9.7 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.97 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:
- 1.6 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Conclusion on classification
Measured aquatic ecotoxicity data are not available for 2-methyl-1-heptanol and all data are read-across from a stuctural analogue, the linear isomer octan-1-ol, in the context of the Category data set (described in the CSR). Octan-1-ol is readily biodegradable and long-term predictions for invertebrates indicates that the NOEC is equal to 1 mg/l.
Therefore, the substance is classified as Chronic Category 3 for the environment in the EU according to Regulation (EC) No 1272/2008.
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