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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

Fish (Danio rerio): The following results were obtained for the test substance 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide:

24-96 h NOEC = 100 mg/l

24-96 h LC50 > 100 mg/l

24-96 h LC100 > 100 mg/l

Fish (Oryzias latipes): The 48-Hour LC50 based on nominal test concentrations was 370 mg/I with 95% confidence limits of 280 - 500 mg/I. The No Observed Effect Concentration was 280 mg/I.

Daphnia: The following results were obtained for 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide in the acute immobilisation test with Daphnia magna STRAUS:

24h NOEC = 100 mg/l

48h NOEC = 100 mg/l

24h-EC501= 100 mg/l

48h-EC501= 100 mg/l

Aquatic algae: The following results were obtained for the test substance 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide:

72h NOEC = 4.6 mg/l

ErC50= 110 mg/l

EbC50 = 100 mg/l

EyC50 = 98 mg/l