Registration Dossier
Registration Dossier
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EC number: 601-722-4 | CAS number: 120570-77-6
Endpoint summary
Administrative data
Description of key information
Additional information
One experimental study according to OECD 306 confirmed thatdiethyleneglycol diformate (CAS 120570-77-6)is readily biodegradable according to the OECD criteria (61.1 - 64.3% biodegradation after 28 d). Therefore, the substance will not be persistent in the environment. The test substance is susceptible to undergo abiotic hydrolysis. Reliable QSAR calculations (HYDROWIN v2.00) resulted in DT50 values of 1.24 d at pH 7 and 2.98 h at pH 8. Considering the high water solubility (500 g/L) and the low potential for adsorption to organic soil and sediment particles (log Koc: 0.17 - 1, KOCWIN v2.00), the main compartment for environmental distribution is expected to be the surface water. Nevertheless, persistency in this compartment is not expected since the substance is readily biodegradable and it will be rapidly and ultimately degraded in sewage treatment plants and natural waters. Evaporation from the water phase into air and the transport through the atmospheric compartment is not expected fordiethyleneglycol diformatebased on the low Henry’s Law constant (< 1 Pa m³/mole (HENRYWIN v3.20); Müller, 2011) and the vapour pressure of 14.18 Pa. However, if released into air,diethyleneglycol diformate issusceptible to rapid indirect photodegradation by OH-radicals with a DT50 value of 21.77 h (AOPWIN v1.92). Therefore, accumulation in air and the subsequent transport to other environmental compartments is not anticipated. The potential for bioaccumulation ofdiethyleneglycol diformateis assumed to be low based on the low log Kow of -0.96.
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