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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

EC50 for freshwater algae:
61 mg/L
EC10 or NOEC for freshwater algae:
0.65 mg/L

Additional information

The toxicityl of 4 -Methoxybenzaldehyd to algae was investigated in two studies: one non-GLP study according to the german national standard guideline DIN 38412, Part 9 (BASF 1989) and one GLP study according to OECD 201 (SIDS 2009). The measured effect concentration of the most sensitive study according to OECD TG 201 revealed an EC50 value of 61 mg/l and an NOEC of 0.65 mg/L according to the growth rate of the algae.