Registration Dossier
Registration Dossier
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EC number: 220-562-2 | CAS number: 2814-77-9
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants: short-term
- Type of information:
- migrated information: read-across based on grouping of substances (category approach)
- Adequacy of study:
- key study
- Study period:
- 2013
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 208 (Terrestrial Plants Test: Seedling Emergence and Seedling Growth Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 1-(4-methyl-2-nitrophenylazo)-2-naphthol
- EC Number:
- 219-372-2
- EC Name:
- 1-(4-methyl-2-nitrophenylazo)-2-naphthol
- Cas Number:
- 2425-85-6
- Molecular formula:
- C17H13N3O3
- IUPAC Name:
- 1-[(4-methyl-2-nitrophenyl)diazenyl]-2-naphthol
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Study design
- Test type:
- early seedling growth toxicity test
- Substrate type:
- natural soil
- Total exposure duration:
- 21 d
Results and discussion
Effect concentrationsopen allclose all
- Species:
- Zea mays
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Species:
- Daucus carota
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Species:
- Allium cepa
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Remarks on result:
- other: only Range-finding study
- Species:
- Sorghum bicolor
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Remarks on result:
- other: only Range-finding study
- Species:
- other: Phacelia tanacetifolia
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Remarks on result:
- other: only Range-finding study
- Species:
- Cucumis sativus
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Remarks on result:
- other: only Range-finding study
- Species:
- Brassica napus
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Remarks on result:
- other: only Range-finding study
- Species:
- Glycine max (G. soja)
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Remarks on result:
- other: only Range-finding study
- Species:
- Lycopersicon esculentum
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 000 mg/kg soil dw
- Nominal / measured:
- nominal
- Remarks on result:
- other: only Range-finding study
- Species:
- Beta vulgaris
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Remarks on result:
- other: Unknown test resuls at the moment
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Executive summary:
Two species (Zea Mays and Daucus Carota) showed no toxicity with NOEC > 1000 mg/kg soil. Seven other species was tested in a range finding study also with no toxic effects at all. However further studies at ongoing for Beta Vulgaris where the test results were inconclusive mainly due to high variability in control
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