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EC number: 619-217-2
CAS number: 96487-85-3
No test substance was detected in the
samples from the blank column.
The water solubility of the substance was determined using the column
elution method in a GLP study according to EC A.6, OECD 105 and OPPTS
Quantification was performed by UPLC-MS/MS. The water solubility at 20°C
was determined to be 29.5 μg/L. The pH of the aqueous samples
Number of Introduced Daphnids and
Incidence of Immobility in the Final Test
Norethyl, %SS prepared at 100 mg/L
( ): Average exposure concentration
Final Test: Test Samples
Time of sampling[hours]
Date of sampling
Percentage of ss2[%]
20 June 2017
26 June 2017
22 June 2017
were stored in the freezer (≤ -15°C) until the day of analysis.
of a saturated solution (ss) prepared at a loading rate of 100 mg/L.
n.d. Not detected.
In a 48h acute toxicity study conducted
according to OECD guideline 202, Daphnia magna were exposed to
Norethyl under static conditions at the following nominal
concentrations: 0 (Control), 10, 18, 32, 56, and 100% of the Saturated
Solution prepared at a loading rate of 100 mg/L. The geometric mean
measured concentration in the SS was calculated to be 0.064 mg/L, which
was considered the solubility limit in test medium. No immobility was
observed at any of the test concentrations and the control during the
exposure period. Therefore, the 48h-EC50 was above the solubility limit,
i.e. >0.064 mg/L. The study is considered to be reliable without
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