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EC number: 200-296-3 | CAS number: 56-89-3
- 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
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The test item L-Cystine had no acute toxic effects on Daphnia magna up to its solubility limit in test water under the test conditions.
The EC50 is > 100 mg/L.
Key value for chemical safety assessment
Additional information
The 48-hour NOEC and 48-hour EC0 of L-Cystine to Daphnia magna were determined to be at least the loading rate of 100 mg/L. The 48-hour NOEC and 48-hour EC0 might even be higher, but concentrations above the loading rate of 100 mg/L were not tested, in accordance with the test guidelines. The 48-hour EC50 and the 48-hour EC100 were clearly higher than the loading rate of 100 mg/L. These values could not be quantified due to the absence of toxicity of L-Cystine at the loading rate of 100 mg/L.
In conclusion, the test item L-Cystine had no acute toxic effects on Daphnia magna up to its solubility limit in test water under the test conditions. The 48-hour NOEC and 48-hour EC0 of L-Cystine to Daphnia magna were determined to be at least the loading rate of 100 mg/L in a limit test according to OECD Guideline 202.
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