Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 204-677-5 | CAS number: 124-07-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.02 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.22 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.022 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 912 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.295 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.029 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:
- 0.047 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
Classification related key information (based on current available information)
Degradation:
- Biodegradation: readily biodegradable: > 72% after 30 d (O2 consumption, OECD 301D)
Bioaccumulation:
- Log Pow = 3.05 (Hansch, 1995)
Aquatic acute toxicity:
- Fish: LC50 (96 h) = 22 mg/L (nominal, mortality of Lepomis macrochirus, EPA-method 1975)
- Aquatic invertebrates: EC50 (48 h) > 21 mg/L (meas. geom. mean, mobility of Daphnia magna, OECD 202); RA CAS 334-48-5
- Algae: EC50 (72 h) = 43.73 mg/L (meas., growth rate, OECD 201)
Aquatic chronic toxicity
- Fish: NOEC (28 d) = 6.4 mg/L (nominal, growth rate of Danio rerio, OECD 305 E); RA CAS 629-25-4
- Aquatic invertebrates: NOEC (21 d) = 0.2 mg/L (nominal, reproduction rate of Daphnia magna, OECD 211); RA CAS 334-48-5
- Algae: NOEC (72 h) = 17.52 mg/L (meas., growth rate, OECD 201)
Conclusion on classification
A harmonized classification towards environmental hazard was adopted for octanoic acid. According to the regulation (EC) No 1272/2008, Annex VI, Table 3.1 the substance is classified as hazardous to the aquatic environment, aquatic chronic 3: harmful to aquatic life with long lasting effects (H412). This corresponds with the available data presented in this dossier, a further self classification is not needed.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
