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EC number: 221-336-6
CAS number: 3069-29-2
Table 1. Test results
Nominal concentration (ppm)
Survival of parental daphnia (%)
Total young produced +/-Stand Dev
Young produced per female +/-Stand Dev
Initial survival of offspring (%)
(21-day) NOEC: =1 ppm (=1 mg/l)
survival and reproduction Daphnia magna, (read-across from CAS
1760-24-3) (Dow Corning, 1980). The
NOEC is equivalent to =0.81
ppm (=0.81 mg/l) when
expressed in terms of the silanol hydrolysis product,
There are no data for the
registered substance. However, a 21-day NOEC of =1 ppm (=1 mg/l) has
been determined for the effects of the read-across substance
N-(3-(trimethoxysilyl)propyl)ethylenediamine (CAS 1760-24-3) on survival
and reproduction of Daphnia magna. The test substance has a
density of 1.03 and it is assumed that the test sample had a purity of
approximately 96%. The results are expressed relative to nominal
concentrations of the test substance.
The substance is subject to rapid
hydrolysis and under the test conditions it is therefore likely that
exposure will have been to its hydrolysis products (methanol and
The results may be expressed in
terms of concentration of the silanol hydrolysis product,
N-(3-(trihydroxysilyl)propyl)ethylenediamine, by applying a molecular
weight correction: (MW of silanol = 180.28 / MW of parent = 222.36) *
[Concentration of parent = =1 mg/l ] = =0.81 mg/l.
Further information on read-across
is given in the IUCLID Section 6 endpoint summary (CSR Section 7.0) and
in the ecotoxicity RAAF attached in Section 13 of IUCLID.
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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