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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 203-851-8 | CAS number: 111-26-2
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
In an 48 h toxicity test to Daphnia magna the L50 value of the test substance was determined to be 13.2 mg/L based on nominal and 8.6 mg/L based on measured values.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 8.6 mg/L
Additional information
In a study on Daphnia magna, the short-term toxicity of the test substance was assessed. Therefore, for preparation of a stock solution, the test substance was weighed into the test medium (ISO medium) and the mixture was ultrasonicated for 5 min and stirred for 22 hours. Afterwards the solution was diluted to the nominal test substance concentrations 0, 3.125, 6.25, 12.5, 25, 50 and 100 mg/L. The total test duration was 48 hours, after 24 hours the test substances were renewed. 20 daphnia per vessel and a total of 20 per concentration and 30 for the negative control were tested. Based on mobility, the EC50 (48 h) of hexylamine was determined to be 13.2 mg/L (measured: 8.6 mg/L). In comparison, potassium dichromate was used as positive control and resulted in an EC50 (48 h) of 1.14 mg/L.
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.
