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EC number: 908-205-5
CAS number: -
The toxicity of MTDID 22327 to green algae (Pseudokirchneriella
subcapitata) was assessed in a limit test according to OECD TG 201. The
test substance is highly volatile. All tests were conducted in glass VOA
vials, completely filled with medium and closed with caps. All transfers
were made through a septum with a gas-tight syringe. A water soluble
fraction was made at a loading rate of 100 mg/L, with residual
undissolved test material allowed to remain in the test vials.
Analytical measurement of test substance concentrations was not done,
but the test substance was visibly present throughout the test. The
72-hour EC10 and EC50 were > 100 mg/L (nominal concentration),a level
which was greater than the water solubility of MTID 22327 in the test
medium. No effects on growth rate were observed.
The study was conducted according to internationally accepted test
guidelines and in accord with GLP criteria. Variability in
section-specific growth was above the limit given in OECD TG201, but is
considered acceptable in a sealed-vessel protocol designed to contain a
volatile and poorly-soluble test material. The study is considered
reliable without restrictions and is suitable for Risk Assessment,
Classification & Labeling, and PBT Analysis.
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