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EC number: 418-400-2 | CAS number: 1031-15-8 METHYL-TPP-CHLORID; MTPP-CHLORID
- 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
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Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro gene mutation study in bacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Dec 10, 1993 - Feb 08, 1994
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 994
- Report date:
- 1994
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 471 (Bacterial Reverse Mutation Assay)
- Version / remarks:
- May 26, 1983
- Deviations:
- no
- GLP compliance:
- yes
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- Methyltriphenylphosphonium chloride
- EC Number:
- 418-400-2
- EC Name:
- Methyltriphenylphosphonium chloride
- Cas Number:
- 1031-15-8
- Molecular formula:
- C19H18ClP
- IUPAC Name:
- methyltriphenylphosphanium chloride
Constituent 1
Method
Species / strain
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
- Metabolic activation:
- with and without
- Metabolic activation system:
- S9 liver microsomal fraction of male Wistar rats
- Test concentrations with justification for top dose:
- According to the results of this pre-experiment the concentrations applied in the main experiments were chosen. The concentration range covered two logarithmic decades.
The maximum concentration was 5000.0 µg/plate. In this study six adequately spaced concentrations were tested. Two independent experiments were performed.
According to the dose selection criteria the test article was tested at the following concentrations:
33.3, 100.0, 333.3, 1000.0, 2500.0, and 5000.0 µg/plate - Vehicle / solvent:
- aqua bidest.
Controls
- Untreated negative controls:
- yes
- Negative solvent / vehicle controls:
- yes
- Positive controls:
- yes
- Positive control substance:
- sodium azide
- other: 4-nitro-o-phenylene-diamine, 2-aminoanthracene
- Evaluation criteria:
- A test article is considered positive if either a dose related and reproducible increase in the number of revertants or a significant and reproducible increase for at least one test concentration is induced.
A test article producing neither a dose related and reproducible increase in the number of revertants nor a significant and reproducible positive response at anyone of the test points is considered non-mutagenic in this system.
A significant response is described as follows: A test article is considered mutagenic if in strain TA 100 the number of reversions is at least twice as high and in strains TA 1535, TA 1537 and TA 98 at least three times higher as compared to the spontaneous reversion rate.
Also, a dose-dependent and reproducible increase in the number of revertants is regarded as an indication of possibly existing mutagenic potential of the test article regardless whether the highest dose induced the above described enhancement factors or not.
Results and discussion
Test resultsopen allclose all
- Key result
- Species / strain:
- S. typhimurium, other: TA 1535, TA 1537, TA 98, TA 100
- Metabolic activation:
- without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- other: yes / >= 1000 µg/plate and higher (with and without metabolic activation)
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- valid
- Positive controls validity:
- valid
- Key result
- Species / strain:
- S. typhimurium, other: TA1535, TA 1537, TA 98, TA 100
- Metabolic activation:
- with and without
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- other: yes / >= 1000 µg/plate and higher (with and without metabolic activation)
- Vehicle controls validity:
- valid
- Untreated negative controls validity:
- valid
- Positive controls validity:
- valid
- Additional information on results:
- No substantial increases in revertant colony numbers of any of the four tester strains were observed following treatment with MTPP-Cl at any concentration level, either in the presence or absence of metabolic activation (S9 mix) in experiment I. Due to these results the second experiment was carried out as a preincubation test. In this experiment, there was also no tendency of higher mutation rates with increasing concentrations in the
range below the generally acknowledged border of biological relevance.
Appropriate reference mutagens were used as positive controls. They showed a distinct increase in induced revertant colonies. - Remarks on result:
- other: plate incorporation test
Applicant's summary and conclusion
- Conclusions:
- It can be stated that during the described mutagenicity test and under the experimental conditions reported, the test article did not induce gene mutations by base pair changes or frameshifts in the genome of the strains used. Therefore, MTPP-CI is considered to be non-mutagenic in this Salmonella typhimurium reverse mutation assay.
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