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Diss Factsheets
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EC number: 500-036-1 | CAS number: 25214-70-4
- 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
Endpoint summary
Administrative data
Key value for chemical safety assessment
Additional information
Justification on read-across of data for the 4,4´-isomer of MDA for oligomeric MDA in the scope of REACH is documented in IUCLID Toxicological information and described in sections 5.1 and 5.11 of the CSR.
Discussion
The official EU Risk assessment for MDA (2001) concluded the following for Genotoxicity: MDA induces gene mutations in bacteria. In mammalian cell cultures in the presence of an exogenous metabolisation system, MDA is an inducer of chromosomal aberrations. Inconclusive or weak effects were obtained in other cell culture assays.
In vivo, slight increases of micronuclei frequencies were found in mice after treatment to high doses. Furthermore, a high MDA dose led to DNA fragmentation in rat liver cells. Weak marginal effects were obtained for induction SCE (mouse bone marrow) and DNA binding (rat liver).
MDA causes concern for man owing to possible mutagenic effects. There is evidence from in vivo micronucleus tests (although only weakly positive) which is supported by the induction of DNA fragmentation in vivo and chromosomal aberrations in vitro. On the other hand, there is not sufficient evidence to place the substance in category 2. Therefore, according to the classification criteria MDA has been classified as category 3 mutagen.
Endpoint Conclusion: Adverse effect observed (positive)
Justification for classification or non-classification
In regulation 1272/2008/EC, MDA is officially classified as mutagen 2, H341: suspected of causing genetic defect.
According to annex I, directive 67/548/EC, MDA is classified: R68 -Possible risk of irreversible effects
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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