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EC number: 257-473-3
CAS number: 51851-37-7
Short-term toxicity to fish: 96
hour LC50 >3.1 mg/L and a NOEC of ≥3.1 mg/L (measured) (highest
concentration tested) (OECD Guideline 203 (Fish, Acute Toxicity Test)).
A 96 hour LC50 value of >3.1 mg/L and NOEC of ≥3.1 mg/L
(measured) (highest concentration tested) have been determined for the
effects of [2-(perfluorohexy)ethyl]triethoxysilane (CAS 51851-37-7) on
mortality of Cyprinus carpio based on mean measured initial
Dissolved Organic Carbon (DOC) concentration. The test medium was
prepared at an initial loading rate of 1000 mg/L of the substance and
was subsequently filtered before introducing the test organisms.
Because hydrolysis rate is uncertain in test media, and because the
extremely low water solubility of the test substance may limit
hydrolysis, it is likely that the test organisms were exposed to parent
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