Registration Dossier
Registration Dossier
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EC number: 203-687-7 | CAS number: 109-61-5
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Parent compound propyl chloroformate (CAS 109-61-5): no data
Hydrolysis product propanol (71-23-8): With high probability acutely not harmful to aquatic algae
Key value for chemical safety assessment
Additional information
Parent compound propyl chloroformate (CAS 109-61-5):
No data available. However, as the dissolved substance is expected to rapidly hydrolyse in contact with water (t1/2 < 1 h), available data of the hydrolysis product propanol are used to assess the aquatic toxicity of the chloroformate to aquatic algae.
Hydrolysis product propanol (CAS 71-23-8):
The toxicity of propanol to aquatic algae was studied in a 96 h growth inhibition test with Pseudokirchneriella subcapitata (formerly: Selenastrum capricornutum) (Slooff et al., 1989). The 96 h EC50 was determined to be > 2000 mg/L (nominal, not analytically verified).
Based on these result, propanol is considered to be acutely not harmful to aquatic algae.
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