Registration Dossier
Registration Dossier
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EC number: 907-349-6 | CAS number: -
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The reaction mass of hexadecyl isocyanate and octadecyl isocyanate, as defined in section 1, consists of 35 % of hexadecyl isocyanate and 65 % of octadecyl isocyanate. Therefore, octadecyl isocyanate was considered to estimate the toxicity of the substance to fish.
A 48 hour EC50 of > 1000 mg/L was determined. No adverse symtoms were observed.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 1 000 mg/L
Additional information
"should read > 1000 mg/l"
There is no reliable data available for the test substance itself. But as results are present for one main constituents of the reaction mass (65%), this data is taken into account for further assessment as read-across approach. It is assumed that due to the similarity of the chemical structures of both main constituents the ecotoxicological hazards of the reaction mass can be described with data of one or both main components as a realistic approach.
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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