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EC number: 701-247-3
CAS number: -
Determination of the potential for bioaccumulation follows Guidance on Information Requirements and Chemical Safety Assessment Chapter R.16: Environmental Exposure Estimation (ECHA, 2012). Chapter R.16 and REACH Annex IX states that there may be bioaccumulation potential if log Kow is >3. Experimentally measured log Kow for ASA Category substances range between -0.96 to 0.41. The likelihood of bioaccumulation is very low and the requirement for further testing is waived.
The substance is not bioaccumulative.
The BCF value has been estimated with BCFBAF v3.01 and for all substances the Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt). This value has been use for the Chemical safety assessment
One study investigated bioaccumulation of PTSA, whose ring was evenly labelled with 14C, in guppies ( Poecilla reticulata) under semistatic conditions. The fish were exposed in aerated spring water which was renewed each day. During the course of 9 days exposure, at an initial PTSA concentration of 2.91 +/- 0.07 ug/l and a temperature of 22 -23 °C, the absorbtion factor (the ratio of measured radioactivity in the fish to that in the water) remained under 1.
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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