Registration Dossier
Registration Dossier
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EC number: 204-407-6 | CAS number: 120-55-8
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
An algal growth inhibition test was conducted to determine the effect on the growth of algae of the test material DEGDB (HLS 2001, VCL265/974223). The study was conducted according to EC, OECD, and US EPA test guidelines, and in compliance with GLP.
According to the result of the study:
The 72h EL10 (Area under the curve, biomass) was 2.7 mg/L and the 72h EL10 (Growth rate) was 3.3 mg/L.
The 96h EL10 (Area under the curve, biomass) was 3.6 mg/L and the 96h EL10 (Growth rate) was 3.6 mg/L.
The 72h EL50 (Area under the curve, biomass) was 5.2 mg/L and the 72h EL50 (Growth rate) was 11 mg/L. The corresponding "No-observed effect loading rate" (NOELR) were 1.0 mg/L and 2.2 mg/L, respectively.
The 96h EL50 (Area under the curve, biomass) was 5.9 mg/L and the 96h EL50 (Growth rate) was 15 mg/L. The corresponding NOELR for both were 2.2 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 11 mg/L
- EC10 or NOEC for freshwater algae:
- 3.3 mg/L
Additional information
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