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EC number: 245-659-7
CAS number: 23432-62-4
Table 1. Results of
analysis of test media
Nominal concentration of test substance (mg/L)
Measured test substance concentration at start of test (mg/L)*
Measured test substance concentration after 96 hours (mg/L)*
Nominal concentration of substance taking percentage of active ingredient into account (mg/L)**
Measured test substance concentration at start of test as percentage of nominal
Measured test substance concentration after 96 hours as percentage of nominal
100 (Rep 1)
100 (Rep 2)
*Calculated from measured Dissolved
Organic Carbon (DOC) concentration and taking percentage of carbon in
the test substance and molecular weight (237.326) of the substance into
**Percentage active ingredient of the
substance is 95.92%
There were no toxic effects at the only nominal test concentration of
LC50 (96 h) > 100 mg/L (nominal) based on mortality of Oncorhynchus mykiss (OECD 203)
One experimental study is available investigating the toxicity of
methyl-N-[3-(trimethoxysilyl)propyl]carbamate (CAS 23432-62-4) to
freshwater fish (2002).
A 96-hour LC50 value of >100 mg/Lwas determined for the effects of the
test substance on mortality of Oncorhynchus mykiss based on nominal
exposure concentrations of the substance. Since the substance is
expected to hydrolyse rapidly in contact with water (DT50: 3.0 h at 20 -
25 °C, pH 7), the result from this study mainly investigated the
possible effects of the hydrolysis products
(Methyl-N-[3-(trihydroxysilyl)propyl]carbamate and methanol).
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