Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 204-616-2
CAS number: 123-30-8
Concentrations: The test concentrations were measured three times (0, 3,
24th hour) during the test period using HPLC.
mean of measured concentration at the initial and 24th-hour (before
Water chemistry (pH, DO, and temperature in test): Water chemistry and
temperature were measured for control and each concentration at the
start and before water replacement (24th-hour) of the test.
pH: 7.6 - 7.7
DO: 8.6 - 8.8 mg/L
Water Temperature: 20.0 - 20.2 C
EC50 (48hr) 0.182mg/L (mc)
95% Confidence Interval: 0.085 – 0.11 mg/L
mc: based on measured concentrations
or Immobility: None of test organisms were immobilized the behaviours at
The short-term toxicity in daphnia magna is from one key study with results calculated as mean measured concentrations of EC50 (48 hours) 0.089 mg/l and NOEC of 0.064 mg/L.
key study is an Acute Toxicity in Daphnia magna completed in 1997 based
on OECD method 202 with a reported EC50 (48 hours) mean measured values
as 0.0.089mg/l, NOEC as 0.064 mg/L. Values
were based on mean measured concentrations calculated directly from data
in the study report. The
measured concentrations of the test article were 103 -106% of the
labeled concentrations at the start of exposure, 51.4 % -65.3% after 3
hours and 0.0 to14.0% at the time the solution was changed (24 hours).
One supporting study was included with klimisch of 4: daphnia magna -
EC50 (48 h): 0.24 mg/L.
As the substance degrades rapidly an additional study was conducted to
determine the toxicity of the degradation products versus the parent
molecule. The results of this study show that the parent molecue is
significanty more toxic that the degradation products.
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again