Registration Dossier
Registration Dossier
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EC number: 212-990-3 | CAS number: 903-19-5
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:
- no hazard identified
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:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Environmental fate and pathways
Water solubility: 0.027 mg/L at 20 °C, pH 7 Degradation
Biodegradation: not readily biodegradable (0% after 28 d)
Bioaccumulation: Low potential for bioaccumulation (BCF: 271 L/kg)
Acute aquatic toxicity
No observed toxicological effects up to the limit of water solubility
Fish: Oryzias latipes LC50 (96 h): > 5 mg/L (range finding study, OECD 305)
Aquatic invertebrates: Daphnia magna EL50 (48 h): > 10 mg/L (OECD 202)
Algae: Desmodesmus subspicatus EL50 (72 h): > 10 mg/L (OECD 201)
Chronic aquatic toxicity
No observed toxicological effects up to the limit of water solubility
Fish: No data available
Aquatic invertebrates: No data available
Algae: Pseudokirchneriella subcapitata NOEL (72 h): > 10 mg/L (OECD 201)
CLP:
2,5-bis(1,1,3,3-tetramethylbutyl)benzene-1,4-diol is not readily biodegradable and is considered to be not toxic to fish, aquatic invertebrates or algae. All available acute and chronic effect concentrations are > 1 mg/L. based on the absence adverse effects within the limits of water solubility. The substance has a low potential for bioaccumulation (BCF < 500). Therefore, the substance is not classified and labelled for environmental hazards according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).
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