Registration Dossier
Registration Dossier
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EC number: 931-740-0 | CAS number: -
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
The seedling emergence and seedling growth test in accordance with GLP and OECD 208. In the study the effects on seedling emergence and early growth on selected higher plants in soil which has been amended with the test item was assessed for effects up to 21 days after 50% emergence of the seedlings.
Key value for chemical safety assessment
- Short-term EC50 or LC50 for terrestrial plants:
- 238 mg/kg soil dw
- Long-term EC10, LC10 or NOEC for terrestrial plants:
- 125 mg/kg soil dw
Additional information
The key study was conducted in compliance with GLP according to OECD 208. Some stunting or effects on emergence were observed during the study. Based on the study results sugar beet and wheat were the most sensitive plants in the test. The lowest EC50 and NOEC-values for the most sensitive plant (sugar beet) and for the most sensitive endpoint (shoot height) were selected as a key values for CSA.
The EC50 values for emergence were determined as 696 mg/kg dry soil for oilseed rape, 349 mg/kg dry soil for sugar beet, 353 mg/kg dry soil for wheat, 882 mg/kg dry soil for maize, 884 mg/kg dry soil for pea and >1000 mg distillation residue/kg dry soil for tomato.
The EC50 values for shoot height were determined as 664 mg/kg dry soil for oilseed rape, 238 mg/kg dry soil for sugar beet, 342 mg/kg dry soil for wheat, 596 mg/kg dry soil for maize, 684 mg distillation residue/kg dry soil for pea. The EC50 values for dry shoot weight were determined as 450 mg/kg dry soil for oilseed rape, 415 mg/kg dry soil for sugar beet, 304 mg/kg dry soil for wheat, 452 mg/kg dry soil for maize, 616 mg/kg dry soil for pea and 799 mg distillation residue/kg dry soil for tomato.
The corresponding NOEC values for emergence were determined as 125 mg/kg dry soil for sugar beet, 500 mg/kg for oilseed rape, maize and pea, 250 mg/kg for wheat and 1000 mg distillation residue/kg dry soil for tomato. NOEC values for shoot height were determined as 125 mg/kg for sugar beet, 500 mg/kg for oilseed rape and tomato, 250 mg distillation residue/kg dry soil for maize, wheat and pea. NOEC values for dry shoot weight were determined as 125 mg/kg dry soil for sugar beet, 250 mg/kg dry soil for oilseed rape, maize, wheat and pea, 500 mg distillation residue/kg dry soil for tomato.
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.
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