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EC number: 228-532-0 | CAS number: 6290-03-5
According to ECHA guidance Chapter R.7c: Endpoint specific guidance, Version 3.0 – June 2017, Section R.7.11.2 the following applies: QUOTE: "In the case of readily biodegradable substances which are not directly applied to soil it is generally assumed that the substance will not enter the terrestrial environment and as such there is no need for testing of soil organisms is required." UNQUOTE.
The substance (R)-(-)-butane-1,3-diol was shown to be readily biodegradable, is fully miscible in water and does have a negative log Pow (-0.9). Finally, no direct application to soil is known and indirect exposure of soil is also unlikely. The substance is used as intermediate and monomer in industrial processes, making exposure to soil very unlikely. The professional and consumer uses in cosmetic, washing and cleaning and pharmaceutical products do result in aqueous emissions to sewage treatment plants, in which due to the ready biodegradability the substance would be entirely biodegraded and thus, exposure to soil through these uses of the substance is unlikely too.
Thus, long-term exposure to soil is not of concern and no testing for long-term toxicity to soil macroorganisms is required, based on exposure considerations.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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