Registration Dossier
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EC number: 260-330-8 | CAS number: 56677-60-2
Endpoint summary
Administrative data
Description of key information
Additional information
In aquatic systems, dissolved tetradecyl chloroformate (CAS 56677 -60 -2) hydrolyses quickly and forms HCL (CAS 7647 -01 -0), CO2 (CAS 124 -38 -9) and tetradecanol (CAS 112 -72 -1) (for details see section 5.1.2).
Short-term toxicity to fish
Parent compound tetradecyl chloroformate: With high probability acutely not harmful to fish (96 -h LC50 > 1000 < 2150 mg/L).
Hydrolysis product tetradecanol: Not harmful to fish (no mortality at maximum water solubility of 0.19 mg/L).
Hydrolysis product HCL: Acutely toxic for fish (96 -h LC50 = 4.92 mg/L; pH-dependent).
Short-term toxicity to aquatic invertebrates
Parent compound tetradecyl chloroformate: No data available.
Hydrolysis product tetradecanol: no data available; based on mortality results of long-term study: not harmful to aquatic invertrebrates (no mortality/immobility at maximum water solubility).
Hydrolysis product HCL: Acutely very toxic for aquatic invertebrates (48 -h EC50 = 0.492 mg/L; pH-dependent).
Long-term toxicity to aquatic invertebrates
Parent compound tetradecyl chloroformate: No data available.
Hydrolysis product tetradecanol: very toxic to aquatic invertebrates (NOEC = 1.6 µg/L).
Toxicity to aquatic algae and cyanobacteria
Parent compound tetradecyl chloroformate: No data available.
Hydrolysis product tetradecanol: Not harmful to algae (up to the water solubility limit of 0.19 mg/L).
Hydrolysis product HCL: Acutely very toxic to algae (72 -h ErC50 = 0.492 mg/L; pH-dependent).
Toxicity to microorganisms
Due to the poor water solubility of ca. 0.19 mg/L exposure to microorganisms in STPs are considered negligible. Moreover, the available screening tests on biodegradation in water do not indicate any inhibitory effects at the tested concentrations, i.e. up to the maximum water solubility. Tetradecanol is readily biodegradable as was shown in the BODIS-test according to ISO 10708 (Henkel KGaA, 1992). These results are supported by a Tetrahymena study on population growth impairment following the method of Schultz et al. In this assay tetradecanol was not toxic to the microorganisms up to the saturation limit (Schultz et al., 1990).
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