Registration Dossier
Registration Dossier
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EC number: 451-900-9 | CAS number: 894406-76-9
Endpoint summary
Administrative data
Description of key information
Additional information
Didecyldimethylammonium Chloride (DDAC, structural analogue of DDACarbonate) has a low acute toxicity to the earthworm with an LC50 value greater than 1.0 mg AI/kg soil dw.
According to REACH Regulation (EC) No 1907/2006 Annex IX, column 2, section 9.4 experimental studies on terrestrial arthropods were waived, as direct and indirect exposure resulting in unacceptable risk is unlikely.
In an acute study to determine toxicity to terrestrial plants using DDAC LC50 values of 283 mg/kg (wet weight) and 177 mg/kg (dry weight) for mustard, 857 mg/kg (wet weight) and 486 mg/kg (dry weight) for wheat and 1670 mg/kg (wet weight) and 1310 mg/kg (dry weight) for mung were obtained. These values indicate that DDACarbonate is slightly toxic to terrestrial plants.
In addition, the Soil microbial community test conducted on the structural and chemical analogue, DDAC indicated that there was no long-term adverse influence on the nitrogen and carbon transformations in soils.
Finally, DDAC has low potential for adversely affecting the nitrogen or carbon transformations in sandy loam and low humic content sand soils with no effects up to 1.0 mg AI/kg soil dw.
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