Registration Dossier
Registration Dossier
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: 203-308-5 | CAS number: 105-55-5
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The acute toxicity of N,N’-DIETHYL THIOUREA was evaluated with Daphnia magna in a study performed in accordance with OECD testing guideline 202 and GLP requirements. EC50-48 h was estimated using nominal concentrations as being equal to 56 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Dose descriptor:
- EC50
- Effect concentration:
- 56 mg/L
Additional information
The acute toxicity of N,N’-DIETHYL THIOUREA was evaluated with Daphnia magna in a study performed in accordance with OECD testing guideline 202 and GLP requirements.
The young daphnids were exposed to nominal test concentrations between 10.2 and 150 mg/L under static conditions during 48 hours. The mean measured concentrations were maintained between 80 and 120 % of nominal. EC50-48 h was estimated using nominal concentrations as being equal to 56 mg/L.
Mortality in control, temperatures, pH range and dissolved oxygen concentration were reported and in agreement with the guideline requirements.
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.
