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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

An OECD 209 test guideline study was performed with 1,2,3,6-tetrahydrophthalic anhydride, oligomeric reaction products with 2,2-dimethylpropan-1,3-diol used as read-across chemical.

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L

Additional information

In an OECD test guideline 209 activated sludge, respiration inhibition test study, the test substance had an EC50 (3h) value greater than 1000 mg/L.