Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 205-167-5 | CAS number: 134-96-3
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants: short-term
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 1978
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 978
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Germination tests of three days were carried out on agar at 30 °C with Lactuca sativa L. cv. Great Lakes as described previously (Reynolds 1975 and 1977) using aqueous solutions of the appropriate aromatic compounds and inhibitory activity expressed as the millimolar concentration producing 50% reduction in percentage germination compared with water controls at a given temperature.
- GLP compliance:
- no
Test material
- Reference substance name:
- 4-hydroxy-3,5-dimethoxybenzaldehyde
- EC Number:
- 205-167-5
- EC Name:
- 4-hydroxy-3,5-dimethoxybenzaldehyde
- Cas Number:
- 134-96-3
- Molecular formula:
- C9H10O4
- IUPAC Name:
- 4-hydroxy-3,5-dimethoxybenzaldehyde
- Test material form:
- not specified
- Details on test material:
- Solved in Ethanol. Source: Sigma Chemical Co.
Constituent 1
Test organisms
- Species:
- Lactuca sativa
- Details on test organisms:
- Lactuva sativa L. cv. Great Lakes
Study design
- Test type:
- seed germination/root elongation toxicity test
- Study type:
- laboratory study
- Total exposure duration:
- 3 d
Test conditions
- Test temperature:
- 30 °C
Results and discussion
Effect concentrations
- Key result
- Species:
- Lactuca sativa
- Duration:
- 3 d
- Dose descriptor:
- EC50
- Effect conc.:
- 0.716 other: g/L
Applicant's summary and conclusion
- Conclusions:
- An EC50 of 0.716 g/L was determined for seedling germination of Lactuca sativa.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
