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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 223-267-7 | CAS number: 3794-83-0
Long-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
(14 d) NOEC 60 mg active acid/L O. mykiss
Key value for chemical safety assessment
Additional information
A 14 d NOEC value of 60 mg/L (as active acid) has been determined for the effects of HEDP acid on the altered behaviour and loss of equilibrium of the freshwater fish S Gairdneri (now known as Onychorhynchus mykiss).
A 14 day LC50 of 180 mg/L (as active acid) has also been determined based on mortality. For details on the study refer to KEY (r-a) 14 d Short-term toxicity to fish, ABC 1979.001 It is possible to read-across these values to HEDP-4Na based on the information reported in the Short term toxicity to fish Endpoint Summary.
A longer toxicity testing with fish is not considered necessary because:
- PNECfreshwater has been derived from long term Daphnia data; the risk characterisation ratios (RCR) based on PNECsediment derived from this method are <1.
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.
