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: 203-815-1 | CAS number: 110-91-8
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
With high probability acutely not harmful to fish.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Dose descriptor:
- LC50
- Effect concentration:
- > 100 mg/L
Additional information
The assessment of the short-term toxicity to fish is based on the available and valid data from two studies with Oryzias latipes as test species by NITE (1997). In an acute toxicity study according to OECD 203 and performed under GLP, the effect on fish due to the exposure to morpholine was observed in a semi-static limit test (water exchange after 48 h). No mortality was observed during the exposure period of 96 hours at the test concentration of 100 mg/L. The test concentrations were analytically verified. This study was selected as key study.
The result is supported by a prolonged toxicity study which was also performed under GLP by NITE (1997). The test species was O. latipes. The test was performed under flow-through conditions. The test concentrations were analytically verified. The LC50 was determined to be > 100 mg/L (nominal; > 92 mg/L, mean-measured).
It can be concluded that morpholine is with high probabaility acutely not harmful to fish.
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.
