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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 211-694-1 | CAS number: 687-47-8
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.32 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 3.2 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.032 mg/L
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.66 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.166 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:
- 0.145 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Ethyl (S)-lactate has a low potential for adsorption to sediment and soil, is readily biodegradable and is rapidly hydrolysed to lactic acid and ethanol in vivo. No adverse effects have been observed in the acute aquatic toxicity studies with fish, daphnids and algae at the highest recommended test concentrations of 100 mg/L. However, since test concentrations of > 100 mg/L were employed, adverse effects were observed at elevated concentrations. PNECs were hence calculated on the basis of the lowest observed EC/LC50 of 320 mg/L (fish, 96 h).
Ethyl (S)-lactate proved to be non-toxic to STP microorganisms at concentrations up to the limit concentration of 1000 mg/L (NOEC). Therefore, no hazard to STP microorganisms has been identified and a PNEC(STP) cannot be determined.
Conclusion on classification
Ethyl (S)-lactate has a low potential for adsorption to sediment and soil, is readily biodegradable and is rapidly hydrolysed to lactic acid and ethanol in vivo. No adverse effects have been observed in the acute aquatic toxicity studies with fish, daphnids and algae at the highest recommended test concentrations of 100 mg/L.
Therefore, ethyl (S)-lactate is not classified for environmental hazards.
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.
