Registration Dossier
Registration Dossier
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EC number: 939-185-6 | CAS number: -
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants: long-term
- Type of information:
- read-across based on grouping of substances (category approach)
- Adequacy of study:
- key study
- Justification for type of information:
- The justification for the read across category approach is included in IU section 13.
Data source
Materials and methods
- GLP compliance:
- yes
Test material
- Reference substance name:
- Benzenesulfonic acid, C20-24 (even numbered) alkyl derivs.
- Molecular formula:
- C9H12SO3(CH2)n n=17-21
- IUPAC Name:
- Benzenesulfonic acid, C20-24 (even numbered) alkyl derivs.
- Test material form:
- other: liquid
- Details on test material:
- The test substance is a brown viscous liquid with sulfurous odor.
Constituent 1
Test organisms
- Details on test organisms:
- -
Results and discussion
Effect concentrationsopen allclose all
- Species:
- Sorghum bicolor
- Duration:
- 21 d
- Dose descriptor:
- EC10
- Effect conc.:
- 68 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- growth
- Species:
- Helianthus annuus
- Duration:
- 21 d
- Dose descriptor:
- EC10
- Effect conc.:
- 116 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- growth
- Species:
- Phaseolus aureus
- Duration:
- 21 d
- Dose descriptor:
- EC10
- Effect conc.:
- 126 mg/kg soil dw
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- act. ingr.
- Basis for effect:
- growth
- Species:
- other: all 3
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 100 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- growth
- Species:
- Sorghum bicolor
- Duration:
- 21 d
- Dose descriptor:
- EC50
- Effect conc.:
- 167 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- growth
- Species:
- Helianthus annuus
- Duration:
- 21 d
- Dose descriptor:
- EC50
- Effect conc.:
- 289 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- act. ingr.
- Basis for effect:
- growth
- Species:
- Phaseolus aureus
- Duration:
- 21 d
- Dose descriptor:
- EC50
- Effect conc.:
- 316 mg/kg soil dw
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- act. ingr.
- Basis for effect:
- growth
Applicant's summary and conclusion
- Conclusions:
- The toxicity of the test substance to three species of plant, sunflower, sorghum, and mung bean, was determined. Seeds of these three species were grown in soil containing concentrations of the test ingredient of 0, 1, 10, 100, 1000 mg/kg active ingredient in dry soil. The emergence and growth of seedlings was monitored for 21 days. There was a decrease in emergence of all three species at the highest concentration, with some shoots barely emerging, and stunted and dying. The NOEC for all three species is 100 mg/kg AI. The 21-day EC50 for sunflower was 289 mg/kg AI, for sorghum it was 167 mg/kg AI, and for mung bean it was 316 mg/kg AI. The NOEC for all three species is 100 mg/kg AI. The 21-day EC50 for sunflower was 289 mg/kg AI, for sorghum it was 167 mg/kg AI, and for mung bean it was 316 mg/kg AI.
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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