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EC number: 283-479-0 | CAS number: 84649-98-9 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Cinnamomum zeylanicum, Lauraceae.
- 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

Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro gene mutation study in bacteria
- Remarks:
- Type of genotoxicity: gene mutation
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 30-Jun-2010 to 15-Jul-2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The study has been performed according to OECD and/or EU guidelines and according to GLP principles
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.13/14 (Mutagenicity - Reverse Mutation Test Using Bacteria)
- Deviations:
- no
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes (incl. QA statement)
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- Cinnamomum zeylanicum, ext.
- EC Number:
- 283-479-0
- EC Name:
- Cinnamomum zeylanicum, ext.
- Cas Number:
- 84649-98-9
- Molecular formula:
- Not Applicable due to UVCB
- IUPAC Name:
- Cinnamomum zeylanicum, ext.
- Reference substance name:
- Cinnamon Leaf Oil
- IUPAC Name:
- Cinnamon Leaf Oil
- Details on test material:
- - Name of test material (as cited in study report): Cinnamon Leaf Oil
- Substance type: Clear yellow to brownish yellow liquid
- Physical state: Liquid
- Composition of test material, percentage of components: Confidential
- Lot/batch No.: Confidential
- Expiration date of the lot/batch: Confidential
- Stability under test conditions: Stable
- Storage condition of test material: At room temperature in the dark
Constituent 1
Constituent 2
Method
- Target gene:
- S. typhimurium: Histidine gene
E. coli: Tryptophan gene
Species / strainopen allclose all
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
- Species / strain / cell type:
- E. coli WP2 uvr A
- Metabolic activation:
- with and without
- Metabolic activation system:
- Rat liver S9-mix induced by a combination of phenobarbital and f3-naphthoflavone
- Test concentrations with justification for top dose:
- Experiment 1
Preliminary test (without and with S9) TA100 and WP2uvrA: 3, 10, 33, 100, 333, 1000, 3330 and 5000 pg/plate
Main study: TA1535, TA1537 and TA98:
Without and with S9-mix: 10, 33, 100, 333, 1000 and 2000 pg/plate
Experiment 2:
Without and with S9-mix: 10, 33, 100, 333, 1000 and 2000 pg/plate - Vehicle / solvent:
- - Vehicle(s)/solvent(s) used: DMSO
- Justification for choice of solvent/vehicle: Test compound was stable and soluble in DMSO and DMSO has been accepted and approved by authorities and international guidelines
Controls
- Untreated negative controls:
- no
- Negative solvent / vehicle controls:
- yes
- True negative controls:
- no
- Positive controls:
- yes
- Positive control substance:
- other: Without S9: sodium azide (TA1535); 9-aminoacridine (TA1537); 2-nitrofluorene (TA98); methylmethanesulfonate (TA100); 4-nitroquinoline-N-oxide (WP2uvrA). With S9: 2-aminoanthracene for all tester strains.
- Details on test system and experimental conditions:
- METHOD OF APPLICATION: in medium; in agar (plate incorporation)
DURATION
- Exposure duration: 48 hours
NUMBER OF REPLICATIONS: Doses of the test substance were tested in triplicate in each strain. Two independent experiments were conducted.
NUMBER OF CELLS EVALUATED: 10E8 per plate
DETERMINATION OF CYTOTOXICITY
- Method: The reduction of the bacterial background lawn, the increase in the size of the microcolonies and the reduction of the revertant colonies.
OTHER EXAMINATIONS:
- The presence of precipitation of the test compound on the plates was determined. - Evaluation criteria:
- A test substance is considered negative (not mutagenic) in the test if:
a) The total number of revertants in tester strain TA100 is not greater than two (2) times the concurrent control, and the total number of revertants in tester strains TA1535, TA1537, TA98 or WP2uvrA is not greater than three (3) times the concurrent control.
b) The negative response should be reproducible in at least one independently repeated experiment.
A test substance is considered positive if:
a) A two-fold (TA100) or more or a three-fold (TA1535, TA1537, TA98, WP2uvrA) or more increase above solvent control in the mean number of revertant colonies is observed in the test substance group.
b) In case a repeat experiment is performed when a positive response is observed in one of the tester strains, the positive response should be reproducible in at least one independently repeated experiment. - Statistics:
- Mean and standard deviation
Results and discussion
Test resultsopen allclose all
- Species / strain:
- S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Vehicle controls validity:
- valid
- Positive controls validity:
- valid
- Species / strain:
- E. coli WP2 uvr A
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- cytotoxicity
- Vehicle controls validity:
- valid
- Positive controls validity:
- valid
- Additional information on results:
- TEST-SPECIFIC CONFOUNDING FACTORS
- Precipitation: No precipitation was observed up to and including the top dose of 5000 pg/plate
RANGE-FINDING/SCREENING STUDIES: In test strain TA100, toxicity was observed at dose levels of 1000 pg/plate and above in the absence and presence of S9-mix. In test strain WP2uvrA, toxicity was observed at dose levels of 3330 pg/plate and above in the absence and presence of S9-mix.
COMPARISON WITH HISTORICAL CONTROL DATA: The negative and strain-specific positive control values were within our laboratory historical control data ranges indicating that the test conditions were adequate and that the metabolic activation system functioned properly.
ADDITIONAL INFORMATION ON CYTOTOXICITY:
TA1535: without S9: 1000 pg/plate and above and with S9: 2000 pg/plate
TA1537: without S9: 2000 pg/plate and with S9: 2000 pg/plate
TA98: without S9: 1000 pg/plate and above and with S9: 2000 pg/plate
TA100: without S9: 1000 pg/plate and above and with S9: 333 pg/plate and above WP2uvrA: without S9: 2000 pg/plate and with S9: 2000 pg/plate
Applicant's summary and conclusion
- Conclusions:
- negative with metabolic activation
negative without metabolic activation
The negative and strain-specific positive control values were within the laboratory historical control data ranges indicating that the test conditions were adequate and that the metabolic activation system functioned properly. Based on the results of this study it is concluded that Cinnamon Leaf Oil is not mutagenic in the Salmonella typhimurium reverse mutation assay and in the Escherichia coli reverse mutation assay. - Executive summary:
Cinnamon Leaf Oil was tested in the Salmonella typhimurium (TA1535, TA1537, TA98 and TA100) and in the Escherichia coli reverse mutation assay with a tryptophan-requiring strain of Ecoli (WP2uvrA). The test was performed in two independent experiments in the presence and absence of S9-mix (rat liver S9-mix induced by a combination of phenobarbital and B-naphthoflavone). The study procedures described in this report were based on the most recent OECD and EC guidelines. In the dose range finding test, Cinnamon Leaf Oil was tested up to concentrations of 5000 pg/plate in the absence and presence of S9-mix in the strains TA100 and WP2uvrA. Cinnamon Leaf Oil did not precipitate on the plates at this dose level. In test strain TA100, toxicity was observed at dose levels of 1000 pg/plate and above in the absence and presence of S9-mix. In test strain WP2uvrA, toxicity was observed at dose levels of 3330 and 5000 pg/plate in the absence of and presence S9-mix. Results of this dose range finding test were reported as part of the first experiment of the mutation assay. Based on the results of the dose range finding test, Cinnamon Leaf Oil was tested in the first mutation assay at a concentration range of 10 to 2000 pg/plate in the absence and presence of 5% (v/v) S9-mix in test strains TA1535, TA1 537 and TA98. In an independent repeat of the assay with additional parameters, Cinnamon Leaf Oil was tested at the same concentration range as the first assay in the absence and presence of 10% (v/v) S9-mix in test strains TA1535, TA1537, TA98, TA100 and WP2uvrA. Toxicity was observed in all test strains. Cinnamon Leaf Oil did not induce a significant dose-related increase in the number of revertant (His+) colonies in each of the four tester strains (TA1535, TA1537, TA98 and TA100) and in the number of revertant (Trp+) colonies in test strain WP2uvrA both in the absence and presence of S9-metabolic activation. These results were confirmed in an independently repeated experiment. In this study, the negative and strain-specific positive control values were within the laboratory historical control data ranges indicating that the test conditions were adequate and that the metabolic activation system functioned properly. Based on the results of this study it is concluded that Cinnamon Leaf Oil is not mutagenic in the Salmonella typhimurium reverse mutation assay and in the Escherichia coli reverse mutation assay.
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