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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Pseudokirchnerella subcapitata (reported as Selenastrum capricornutum): 72-h NOEC: 196 mg/L, 72-h ErC50 = 397 mg/L  (CERI, 2000)

Key value for chemical safety assessment

EC50 for freshwater algae:
397 mg/L
EC10 or NOEC for freshwater algae:
196 mg/L

Additional information

The growth inhibiting effect of isobutyl acetate on algae was tested in an OECD 201 study with Pseudokirchnerella subcapitata (reported as Selenastrum capricornutum). The exposure duration was 72 h. The effect values were: 72 -h NOEC: 196 mg/L, 72 -h EC50: 397 mg/L (CERI, 2000).