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Phototransformation in air is not expected to be a relevant environmental fate process, since Sodium N-lauroylsarcosinate (CAS 137-16-6) is not expected to enter the atmospheric compartment based on the estimated vapour pressure under ambient conditions (0.00104 Pa at 25 °C). As this study is not a standard information requirement in REACh and there is no indication from the Chemical Safety Assessment (CSA) on the need to investigate further the fate and behaviour of the substance (Annex X requirement), no further testing is considered necessary for Sodium N-lauroylsarcosinate.