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EC number: 200-661-7
CAS number: 67-63-0
The 24 hour LC50 of 173 substances hazardous in water was
determined by means of a standardized procedure using 24-h-old animals
from a clone of Daphnia magna. At the same time, the LC0 and LC100 for
each of these pollutants were determined. The test medium was tap water
free from chlorine, saturated with oxygen, hardness 16° dH (German), pH
7.6 – 7.7, temperature 20 - 22°C.
The substance was not acutely toxic to Daphnia magna when tested
according to OECD guideline 202 (Daphnia sp. Acute Immobilisation Test),
the substance was determined to possess a 24 hour LC50 of 9714 to 10000
Three studies addressing short-term toxicity to aquatic
invertebrates are presented in the dossier.
Short-term toxicity to aquatic invertebrates.001 – daphnia -1977 –
key: Acute toxicity to Daphnia magna was assessed according to
OECD guideline 202 (Daphnia sp. Acute Immobilisation Test) not according
to GLP (pre-dates GLP requirements). Daphnia were exposed under static
conditions to the substance for 24 hours. The 24-hour EC50
for Immobility was determined to be >10,000 mg/L.
Short-term toxicity to aquatic invertebrates.002 – daphnia – 1982:
Acute toxicity to Daphnia magna was assessed not according to
specific guidelines but is similar to the OECD guideline 202 (Daphnia
Sp. Acute Immobilisation Test). The daphnia were exposed to the
substance under static conditions for 24 hours. The 24 hour EC50
was determined to be 9714 mg/L.
Short-term toxicity to aquatic invertebrates.003 – shrimp – 1974:
Acute toxicity to Crangon crangon (Shrimp) was assessed not
according to specific guidelines but is similar to the OECD guideline
202 (Daphnia Sp. Acute Immobilisation Test). The animals were exposed to
the substance under semi-static conditions in saltwater for 96 hours.
The 96 hour LC50 was determined to be 1150 ppm.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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