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Diss Factsheets
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EC number: 203-597-8 | CAS number: 108-59-8
- 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
Effects on fertility
Additional information
In the combined repeated dose reproduction/developmental screening test with dimethylmalonate in Wistar rats no treatment related changes in fertility index for males and females, gestation index, testes and epididymis weights were observed compared to the control. No treatment related histopathological changes of the sex organs or stages of spermatogenesis were reported (Degussa, 2003). The NOAEL for fertility corresponds therefore to the highest dose tested: 1000 mg/kg bw per day.
Short description of key information:
OECD TG 422 (GLP), oral, rat: NOAEL (fertility) = 1000 mg/kg bw.
Effects on developmental toxicity
Description of key information
OECD TG 422 (GLP), oral, rat:
NOAEL (maternal toxicity) = 300 mg/kg bw.
NOAEL (developmental toxicity) = 1000 mg/kg bw.
Additional information
The combined repeated dose reproduction/developmental screening test with dimethylmalonate in Wistar rats revealed no treatment related changes in the duration of gestation, the gestation index, parturition and pre-implantation loss compared to controls. In the low dose group post-implantation loss was increased and consequently the percentage of live pups born was statistically significantly reduced compared to controls. These changes were considered incidental and not treatment related as the effects were not observed in the mid and high dose groups. No statistically significant differences between treated and control groups were observed for the number of pregnancies, number of dams that littered, number of live litters, mean litter size, mean viable litter size, sex ratio at birth, number of pups dead at first observation or day 2 to 4 post partum, number of live pups at day 0, 3, and 4 post partum and the associated survival indices. A significantly higher percentage of male pups and lower number of females on day 4 post partum in the low dose group was considered incidental as no comparable change was observed in the mid and high dose group or at other time intervals. The mean number and mean weights of male and female pups as well as both sexes combined were otherwise not statistically significantly different from controls. No statistically significant difference in the external abnormalities of life and dead pups compared to controls was observed at all dose levels. Maternal toxicity was restricted to a reversible hepatocellular hypertrophy at 1000 mg/kg bw, with a maternal NOAEL of 300 mg/kg bw. The NOAEL for developmental toxicity was 1000 mg/kg bw per day (Degussa, 2003).
Justification for classification or non-classification
Additional information
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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