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: 249-694-9
CAS number: 29556-33-0
Mortality and symptoms:
Mortality (cumulated) after
symptom (cumulated) after
Explanation of symptoms:
N: Narcotic-like state
C: Swimming near water surface
M: Slow movements compared to control
NS: No abnormal symptoms
S: Surfacing behaviour
L: Loss of equilibrium
SM: Shimming movement
H2: Hypo activity
B: Bending behavior
F: Fin rot
IS: Invert Swimming
SB: Swimming behaviour
RF: Respiratory Function
pH and oxygen content:
pH readings after
Temperature (°C) after
Fish Acute Toxicity test according to
OECD Guideline 203 was conducted for 2-[7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-1
,3-dimethyl-1H-benzimidazolium chloride . The test substance was
soluble in water. Therefore, the test solution was prepared by
dissolving 400 mg of the test substance in 1 liters of potable water
(passed through reverse osmosis system) with continuous stirring. This
test solution was then added to the remaining three liters of water for
achieving test concentrations of 100 mg/L.
The nominal concentration selected for
the experiment was 100 mg/l and Zebra fish were exposed to this
concentration for 96 hours. The lethal concentrations LC50 was found to
be > 100mg/L.
On the basis of above effect
,3-dimethyl-1H-benzimidazolium chloride is not considered as toxic to fish.
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