Registration Dossier
Registration Dossier
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EC number: 800-766-3 | CAS number: 1424148-97-9
Endpoint summary
Administrative data
Description of key information
Additional information
REGISTRATION SUBSTANCE AND READ-ACROSS
The registration substance Penta-PSCA sodium and triethanolammonium salts, CAS No 1424148-97-9 is the salt of the corresponding acid Penta-PSCA, CAS No. 1424148-94-6. In aqueous medium the acid and the corresponding salt co-exist and their ratio to each other is determined by the pKa of 4.7 and the pH in the aqueous medium. For example at pH7 >99% is salt. This composition exists irrespective if the acid or the salt was introduced first in the aqueous medium. This means that substance data generated in aqueous medium can be used for the acid Penta-PSCA as well as for the sodium and triethanolammonium salt.
BIOACCUMULATION AQUATIC / SEDIMENT
A BCF fish test with carp was carried out with Tetrapropenyl succinimido caproic acid (Tetra-PSCA), CAS No. 1424148-99-1which is a structural homologue of the registration substance Pentapropenyl succinimido caproic acid (Penta-PSCA) at Kurume Research Lab, Chemical Products Safety Center, Japan. In this test with two substance concentrations, low BCF in the range of 8 -25 L/kg wwt. were measured (see IUCLID Chapter 5.3.1). The minimum BCF which could be calculated reliably from this test based on the Limit of Quantification of the analytical method (LOQ m) for fish (8.9 µg/g) was 15 L/kg wwt for the test item concentration in water of 0.6 mg/L and 158 L/kg wwt for the water concentration of the test item of 0.06 mg/L. As no concentration in fish was >=LOQm, the BCF values from this test for the test item Tetra-PSCA are <15 L/kg wwt (test group 1 0.6 mg/L in water) and <158 L/kg wwt (test group 2 0.06 mg/L in water).
BIOACCUMULATION IN SOIL
Based on the BCF fish measured in carp (see above) also a low BCF worm is expected.
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