Registration Dossier
Registration Dossier
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EC number: 701-118-1 | CAS number: 2156592-54-8
Endpoint summary
Administrative data
Description of key information
Additional information
REGISTRATION SUBSTANCE AND READ-ACROSS
The registration substance Tetrapropenyl succinimido caproic acid (Tetra-PSCA), CAS No. 1424148-99-1 is a structural homologue of Pentapropenyl succinimido caproic acid (Penta-PSCA), CAS No. 1424148-94-6. Both substance are not only structurally very similar they also have a similar Octanol-water partitioning coefficient: Tetra-PSCA Log Kow=3.7 and Penta-PSCA Log Kow=3.6 and comparable vapour pressures and Critical Micelle Concentrations. Therefore it is justified to use substance data from Penta-PSCA for read-across to Tetra-PSCA.
BIODEGRADATION IN WATER: SCREENING TEST
The registration substance is not readily and not inherently biodegradable (see IUCLID Chapter 5.2.1).
BIODEGRADATION IN WATER: SIMULATION TESTS
The registration substance is not readily and not inherently biodegradable in screening tests. In addition the estimated Koc (EUSES 2.1, organic acids) is 162 L/kg which means sorption to solids is low. In addition the registration substance has a low volatiliy. Based on these facts an elimination in an OECD 303A STP simulation test caused by biodegradation, sorption or volatilisation is not expected and therefore the test is not warranted. Due to the fact that the registration substance is not inherently biodegradable, is it not expected that rapid biodegradation occurs in freshwater.Therefore biodegradation simulations test using river water is not warranted. Due to the low sorption of the registration substance to solids, sediment is not a traget compartment. Based on the facts mentioned before a sediment biodegradation test is not warranted.
BIODEGRADATION IN SOIL
Due to the fact that the registration substance is not readily and not inherently biodegradable in screening test, it is not expected that rapid biodegradation would occur in soil. In addition the estimated Koc (EUSES 2.1, organic acids) is 162 L/kg which means sorption to solids is low. This means transfer of the registration substance from sewage sludge to agricultural soil is limited and therefore soil is not the target compartment. Based on these facts mentioned before a soil biodegradation test is not warranted.
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.
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