Registration Dossier
Registration Dossier
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EC number: 500-220-1 | CAS number: 68515-73-1
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
EC50(72h) = 27.22 mg/L, EC10(72h) = 6.25 mg/L (nominal, active ingredient, growth rate) for Scenedesmus subspicatus (DIN 38412, part 9)
EL50(72h) = 7.03 mg/L (WAF, growth rate) for Skeletonema costatum (ISO 10253)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 27.22 mg/L
- EC50 for marine water algae:
- 7.03 mg/L
- EC10 or NOEC for freshwater algae:
- 6.25 mg/L
Additional information
The toxic effects of D-Glucopyranose, oligomers, decyl octyl glycosides (CAS: 68515-73-1) to marine and freshwater algae were evaluated. For the freshwater compartment the green algae Scenedesmus subspicatus was used for testing according to DIN 38412, part 9. The test exhibited an EC50 (72 h) of 27.22 mg a.i./L (Stelter, 1994). Testing with the marine algae (mainly Skeletonema costatum, according to ISO 10253) resulted in E(L)C50 (72 h) values from 7.03 mg/L (Hudson, 2005) to 12.43 mg a.i./L (Hudson, 2007) and up to 19.82 mg/L (Hudson, 1998). All effect concentrations are based on the growth rate.
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