Registration Dossier
Registration Dossier
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EC number: 208-173-6 | CAS number: 513-85-9
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 algae
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 500 mg/L
- EC10 or NOEC for freshwater algae:
- 76 mg/L
Additional information
The short-term toxicity to algae of 2,3 -Butanediol was assessed using data of the structural analogous substance 1,4-Butanediol. The test has been performed according to German Industrial Standard DIN 38412. The study has yielded EC50 values of >500 mg/L and and an EC10 value of >76 mg/L (BASF 1989). These data indicate that 2,3 -Butanediol exhibits a low order of toxicity to aquatic algae.
The read-across is valid as both substances are readily biodegradable and they reveal a low toxicity to aquatic invertebrates. Furthermore, their molecular strcuture is comparable.
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