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Diss Factsheets
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EC number: 204-435-9 | CAS number: 120-92-3
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants, other
- Remarks:
- Lactuca sativa
- Type of information:
- experimental study
- Adequacy of study:
- disregarded due to major methodological deficiencies
- Study period:
- no data
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- The method was not completely described : no information was available about the test design. The test conditions presented in this study were not in accordance with standardized method : - the support used was agar, - the test duration was 3 days.
Data source
Reference
- Title:
- Comparative effects of alicyclic compounds and quinones on inhibition of lettuce fruit germination.
- Author:
- REYNOLDS T.
- Year:
- 1 987
- Bibliographic source:
- Annals of Botany, 60, 215-223
Materials and methods
- Principles of method if other than guideline:
- other: Inhibition of germination test.
- Type : Agar substrate.
- Endpoint : Inhibition of fruit germination. - GLP compliance:
- not specified
Test material
- Reference substance name:
- Cyclopentanone
- EC Number:
- 204-435-9
- EC Name:
- Cyclopentanone
- Cas Number:
- 120-92-3
- Molecular formula:
- C5H8O
- IUPAC Name:
- cyclopentanone
- Details on test material:
- Test compound was used as received from the manufacturers (B.D.H. Chemicals Ltd., Sigma Chemical Co. Ltd. or Aldrich Chemical Co. Ltd.) without further purification.
Constituent 1
Test organisms
- Species:
- Lactuca sativa
Test conditions
- Details on test conditions:
- Test carried out at 30°C in ambient light.
Agar 0.5% was used as a germination substrate and contained Cyclopentanone in solution.
Inhibitor activity expressed as the concentration required producing a 50% reduction in germination after 3 days at 30°C compared with water
controls
Results and discussion
Effect concentrations
- Duration:
- 3 d
- Dose descriptor:
- other: IC50
- Effect conc.:
- 59.72 other: mg/l
- Basis for effect:
- other: see freetext
- Details on results:
- The concentration of Cyclopentanone which lower the percentage germination of lettuce fruits at 30°C to 50% of the control value was 59.72 +/- 18.5 mg/L (0.71 mM +/- 0.22)
Applicant's summary and conclusion
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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