Registration Dossier
Registration Dossier
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EC number: 611-696-6 | CAS number: 58543-16-1
Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro gene mutation study in bacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- publication
- Title:
- Genotoxicity studies on a high-purity rebaudioside A preparation
- Author:
- Lonnie D. Williams, George A. Burdock
- Year:
- 2 009
- Bibliographic source:
- Food and Chemical Toxicology
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Deviations:
- no
- GLP compliance:
- not specified
- Remarks:
- not specified in the studies
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- (2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl (1R,4S,5R,9S,10R,13S)-13-{[(2S,3R,4S,5R,6R)-5-hydroxy-6-(hydroxymethyl)-3,4-bis({[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy})oxan-2-yl]oxy}-5,9-dimethyl-14-methylidenetetracyclo[11.2.1.0¹,¹⁰.0⁴,⁹]hexadecane-5-carboxylate
- EC Number:
- 611-696-6
- Cas Number:
- 58543-16-1
- Molecular formula:
- C44H70O23
- IUPAC Name:
- (2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl (1R,4S,5R,9S,10R,13S)-13-{[(2S,3R,4S,5R,6R)-5-hydroxy-6-(hydroxymethyl)-3,4-bis({[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy})oxan-2-yl]oxy}-5,9-dimethyl-14-methylidenetetracyclo[11.2.1.0¹,¹⁰.0⁴,⁹]hexadecane-5-carboxylate
- Test material form:
- solid: particulate/powder
Constituent 1
Method
- Test concentrations with justification for top dose:
- 0, 31.6, 100, 316, 1000, 2500 and 5000 μg/plate
Results and discussion
Test resultsopen allclose all
- Species / strain:
- E. coli WP2 uvr A
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity
- Species / strain:
- S. typhimurium TA 1537
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity
- Species / strain:
- S. typhimurium TA 1535
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity
- Species / strain:
- S. typhimurium TA 100
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity
- Species / strain:
- S. typhimurium TA 98
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- no cytotoxicity
- Additional information on results:
- There were no statistically significant increases in the number of revertant colonies or cytotoxicity in any S. typhimurium or E. coli strain exposed to Reb A, with or without metabolic activation at concentrations up to 5000 μg/plate.
- Remarks on result:
- other: Reb A did not exhibit any mutagenic activity in any of the strains utilized at any of the concentrations tested.
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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