Registration Dossier
Registration Dossier
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EC number: 206-496-7 | CAS number: 350-03-8
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity to aquatic algae: ErC50/72h = 399.78 mg/L / LOEC/72h/growth rate = 37 mg/L / NOEC/72h/growth rate = 12 mg/L / EyC50/72 h = 171.28 mg/L / LOEC/72h/yield = 12 mg/L / NOEC/72h/yield = 4.0 mg/L for Pseudokirchneriella subcapitata (OECD 201, GLP, static)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 399.78 mg/L
- EC10 or NOEC for freshwater algae:
- 12 mg/L
Additional information
There is a Klimisch 1 OECD 201 study available, indicating that 3 -Acetylpyridine does not need to be classified as hazardous to the aquatic environment. This is based on an ErC50 (72h) of 399.78 mg/L, the 72h NOEC(growth rate) of 12 mg/L and the fact that the substance is very soluble in water and readily biodegradable. There is no indication given that the results from this study are not reliable, the data requirements according to REACh Annex VII are met and no need for further testing was identified.
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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