Registration Dossier
Registration Dossier
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EC number: 800-984-9 | CAS number: 1428547-35-6
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
NOEC for terrestrial plants has been determined to be > 100 mg/kg dw for tallow alkyl amine (CAS 61790-33-8).
These data have been used as read-across for the registered substance. They are then converted to the corresponding value of the salt, resulting to a NOEC of 205 mg/kg soil (MW of Amines, hydrogenated tallow = 267, MW of the registered substance = 547.5 (263 hydrogenated tallow alkyl amine + 284.5 acid stearic)).
Key value for chemical safety assessment
Additional information
The growth test with terrestrial plants was conducted according to the OECD Guideline 208 by Noack (2000) using tallow alkyl amine (CAS 61790 -33 -8) as test substance. Test systems were a monocotyledon (oat) and two dicotyledons (red clover and radish). Seeds of each plant were exposed to different concentrations of tallow alkyl amine (1, 10, 100 mg test item per kg soil dry weight) and a control. No vehicles were used to dissolve the test substance. The toxic effects of the soil incorporated test item on the emergence of seedlings and the early stages of growth were determined by visual observations and dry weight determination. No phytotoxic effects were observed throughout the test in all replicates resulting in a LC50 (emergence) and a EC50 (growth) of > 100 mg/kg dw.As no effect on growth and emergence for all three species was observed at the highest concentration of 100 mg/kg dw. the NOEC is > 100 mg/kg dw. as well. The NOEC can be used as a chronic endpoint representing autotrophs (producer) in the terrestrial compartment.
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