Registration Dossier
Registration Dossier
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EC number: 413-110-2 | CAS number: 135861-56-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.003 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0 mg/L
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:
- 100 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.494 mg/kg sediment dw
- Assessment factor:
- 10
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- insufficient hazard data available (further information necessary)
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 10 mg/kg soil dw
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 90 300 g/kg food
- Assessment factor:
- 90
Additional information
Conclusion on classification
The EC50for Daphnia and LC50for fish is >0.04 mg/L and so under Directive 67/548/EC 1,3:2,4-Bis-O-(3,4-dimethylbenzylidene)-D-glucitol should be classified as R50 (Very toxic to aquatic organisms). However the water solubility of 1,3:2,4-Bis-O-(3,4-dimethylbenzylidene)-D-glucitol is 0.0476 mg/L and so results from these studies have to be considered with caution. It is considered that due to the low water solubility of the substance, a study performed using higher test concentrations would show that the substance is not classified in line with Directive 67/548/EEC because of its very low water solubility. On this basis no classification is required.
Although the substance is classified as not readily biodegradable, the aquatic BCF is <150 and the chronic NOEC for Daphnia is above the water solubility limit thus R53 (May cause long-term adverse effects in the environment) is not considered to be required. The hazard symbol ‘N’ (Dangerous for the environment) is also not required.
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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