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Diss Factsheets
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EC number: 951-974-7 | CAS number: -
- 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
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Daphnia magna
21-day EC50 based on mortality: 1.7 mg/L (95% confidence limits of 1.5 and 1.9 mg/L effective); read-across MDEA-Esterquat C16-18 and C18 unsatd.
21 -day NOEC based on survival, number of young/adult/reproduction day, and growth (length and weight): 1.0 mg/L; read-across MDEA-Esterquat C16-18 and C18 unsatd.
Production of offsprings in the treated groups indicated that MDEA-Esterquat had an effect on the reproduction at concentration greater than 1 mg/L.
This study is classified as reliable with restriction and satisfies the guideline requirements for a chronic toxicity study with freshwater invertebrates.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 1 mg/L
Additional information
No experimental data are available for the target substance MDEA-Esterquat C18 satd. However, a long-term toxicity study in freshwater invertebrates is available for the closely related source substance MDEA-Esterquat C16 -18 and C18 unsatd. A justification for read-across is given in the general endpoint summary Aquatic toxicity.
The 21-day chronic toxicity of the structurally similar source substance MDEA-Esterquat C16-18 and C18 unsatd. to Daphnia magna was investigated under flow-through conditions (using river water) in a study conducted according to EPA OTS 797.1330 (Daphnid Chronic Toxicity Test). Daphnids were exposed to a control and test chemical at measured concentrations of 0, 0.27, 0.47, 1.0, 2.0 and 3.9 mg/L. The 21-day EC50 based on mortality was 1.7 mg/L (95% confidence limits of 1.5 and 1.9 mg/L). The 21-day NOEC based on survival, number of young/adult/reproduction day, and growth (length and weight) was 1.0 mg/L. Production of offspring in the treated groups indicated that MDEA-Esterquat C16-18 and C18 unsatd. had an effect on the reproduction at concentration greater than 1 mg/L.
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