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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The growth inhibition NOEC was 4.43 mg/L;  the ErC50 was 13.9 mg/L with 95% confidence limits of 13.6 mg/L and 14.3 mg/L; the ErC10 was 7.49 mg/L with 95% confidence limits of 7.02 mg/L and 7.95 mg/L.  

Key value for chemical safety assessment

EC50 for freshwater algae:
13.9 mg/L
EC10 or NOEC for freshwater algae:
4.43 mg/L

Additional information

Vertellus Performance Materials, Inc. contracted ABC Laboratories, Inc., to perform a 72-hour growth inhibition test with the unicellular green alga, Pseudokirchneriella subcapitata, exposed to dimethyl isophthalate, entitled "Dimethyl Isophthalate: Growth Inhibition Test with the Unicellular Green Alga, Pseudokirchneriella subcapitata (Rebstock -ABC Labs, 2012).

The growth inhibition NOErC was 4.43 mg/L; the ErC50 was 13.9 mg/L with 95% confidence limits of 13.6 mg/L and 14.3 mg/L; the ErC10 was 7.49 mg/L with 95% confidence limits of 7.02 mg/L and 7.95 mg/L. The yield inhibition NOEyC was 2.11 mg/L; the EyC50 value was 8.40 mg/L, with 95% confidence limits of 8.29 mg/L and 8.52 mg/L; and the EyC10 was 5.25 mg/L with 95% confidence limits of 4.94 mg/L and 5.56 mg/L.