Registration Dossier
Registration Dossier
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EC number: 203-984-1 | CAS number: 112-55-0
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The NOEC, EC10 and EC50 for biomass and growth rate are below the solubility limit of dodecane-1-thiol as well as the limit of detection of analysis. This corresponds to a NOEC of <14.5 micrograms/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 14.5 µg/L
- EC10 or NOEC for freshwater algae:
- 14.5 µg/L
Additional information
Thiebaud (1999) is a static, 72 -hour study which follows OECD guideline 201. It cannot be verified that the concentrations were maintained within 80% of the nominal concentrations, because the limit of solubility of dodecane-1-thiol is below the limit of analysis. However, as these have been determined from test substance concentrations at the limit of analysis, they provide a conservative result and have therefore been considered suitable for use. The study has been given a reliablility of 2 - reliable with restrictions (Klimisch et al 1997).
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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