Registration Dossier
Registration Dossier
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EC number: 203-687-7 | CAS number: 109-61-5
Short-term toxicity to aquatic invertebrates
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 invertebrates.
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 invertebrates.
Hydrolysis product propanol (CAS 71-23-8):
The acute toxicity of propanol to aquatic invertebrates was studied in a test according to DIN38412, part 11 with Daphnia magna (Kühn et al., 1989). The 48 h EC50 was determined to be 3644 mg/L (nominal, not analytically verified). This result was supported by tests with Gammarus pulex (48 h EC50 = 1000 mg/L, Slooff et al., 1983a) and Daphnia magna (48 h LC50 = 6300 mg/L, Slooff et al., 1983b).
Based on these results, propanol is considered to be acutely not harmful to aquatic invertebrates.
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