Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 271-889-2 | CAS number: 68611-23-4
Endpoint summary
Administrative data
Description of key information
Additional information
In the table below the aquatic toxicity data are summarised
| Species | Guideline | Result in mg/l | Remarks |
Pseudokirchneriella subcapitata |
OECD TG 201 |
EC50 (72h): >2.1 mg/L test mat. (meas. (geom. mean)) based on: growth rate EC10 (72h): 0.53 mg/L test mat. (meas. (geom. mean)) based on: growth rate NOEC (72h): 0.45 mg/L test mat. (meas. (geom. mean)) based on: growth rate |
Key study, Rel 1 |
| Daphnia magna | OECD TG 211 |
NOEC (21d): 0.053 mg/L test mat. (dissolved fraction) (estimated) based on: reproduction (Effect concentration was calculated based on the average exposure concentration times the used dilution factor (i.e. 3.2)) NOEC (21d): 0.053 mg/L test mat. (dissolved fraction) (estimated) based on: growth (Effect concentration was calculated based on the average exposure concentration times the used dilution factor (i.e. 3.2).) NOEC (21d): 0.17 mg/L test mat. (dissolved fraction) (meas. (geom. mean)) based on: mortality |
Key study, Rel 1 |
In view of the poor water solubility in aquatic test media of the substance a long-term Daphnia test was performed and considered more adequate than an acute study.
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