Registration Dossier
Registration Dossier
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EC number: 203-820-9 | CAS number: 110-97-4
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
With high probability acutely not harmful to aquatic algae
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 339 mg/L
- EC50 for marine water algae:
- 240 mg/L
- EC10 or NOEC for freshwater algae:
- 219 mg/L
Additional information
In the key study performed according to German standard DIN 38412, part 9 Scenedesmus subspicatus was exposed to di-isopropanolamine for 72 hours. At termination of the study an ErC50 of 339 mg/l was determined (72 -h ErC10 = 219 mg/L; BASF AG, 1988).
In contrast, an EC50 of 74 mg/l based on the growth rate of Selenastrum capricornutum was determined in a second study after 72 hours (Nagpal, 2003). However, these data are insufficient for the assessment, as no details on test performance are given.
Furthermore, Eide-Haugmo et al. (2012/2009) performed a guideline study according to ISO 10253 with the marine algae Skeletonema costatum. After 72 hours an ErC50 of 240.0 mg/L was determined.
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