Registration Dossier
Registration Dossier
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EC number: 200-836-8 | CAS number: 75-07-0
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants: short-term
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: Supporting study to get an impression of the effects on terrestrial organisms
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 977
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 975
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Acetaldehyde
- EC Number:
- 200-836-8
- EC Name:
- Acetaldehyde
- Cas Number:
- 75-07-0
- Molecular formula:
- C2H4O
- IUPAC Name:
- acetaldehyde
- Details on test material:
- Name of test material (as cited in study report): Acetaldehyde
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test substrate
- Vehicle:
- not specified
Test organisms
- Species:
- Lactuca sativa
- Plant group:
- Dicotyledonae (dicots)
- Details on test organisms:
- - Common name: Lettuce
- Plant family: Asteraceae
- Variety: Great Lakes
- Source of seed: Sutton and Son Ltd.
Study design
- Test type:
- seed germination/root elongation toxicity test
- Study type:
- laboratory study
- Substrate type:
- other: 0.5 per cent agar solution
- Total exposure duration:
- 3 d
Results and discussion
Effect concentrationsopen allclose all
- Species:
- Lactuca sativa
- Duration:
- 3 d
- Dose descriptor:
- EC50
- Effect conc.:
- 22.1 other: mmol
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- germination
- Remarks on result:
- other: confidence limit +/- 1.2 mmol. Original values as cited in the article.
- Species:
- Lactuca sativa
- Duration:
- 3 d
- Dose descriptor:
- EC50
- Effect conc.:
- 972.4 other: mg
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- germination
- Remarks on result:
- other: confidence limit +/- 52.8 mg. Converted value from mmol to mg
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- Based on the results, the EC50 of of acetaldehyde based on the inhibition of germination of Lactuca sativa was 22.1 mmol, corresponding to 972.4 mg.
- Executive summary:
The effects of seed germination inhibition of acetaldehyde was investigated in a laboratory test. Twenty lettuce seeds were exposed to acetaldehyde in agar medium at a constant test temperature of 30°C. Inhibition of germination was determined three days after test start. Based on the observed effects, the EC50 of acetaldehyde was calcuolated to be 22.1 mmol, corresponding to 972.4 mg.
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