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EC number: 261-819-9 | CAS number: 59587-44-9
- 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable: 79.8% (CO2 evolution) after 28 d (OECD 301B), read across.
Key value for chemical safety assessment
Additional information
Data on the ready
biodegradability of 2-ethylhexanol nonanoate (CAS 59587-44-9) are not
available. The assessment of biodegradability was, therefore, based on
studies conducted with the structurally similar substances, Fatty acids,
C8-10, 2-ethylhexyl esters (CAS 649747-80-8) and Fatty acids, C8-16,
2-ethylhexyl esters (CAS 135800-37-2), as part of a read across
approach, which is in accordance with Regulation (EC) No. 1907/2006,
Annex XI, 1.5.
The biodegradability Fatty acids, C8-10, 2-ethylhexyl esters (CAS
649747-80-8) was tested in a study conducted according to OECD guideline
301B (Bouillon, 2010). Domestic activated sludge was exposed to the test
substance for 28 days. The biodegradation rate was determined by
measuring the CO2 evolution. After 28 days, the test substance reached a
degradation rate of 79.8%. The 10-day window criterion, defined for
mono-constituent substances, was met, although it would not be required
since the substance is a UVCBs. The result is supported by a study on
the ready biodegradability of Fatty acids, C8-16, 2-ethylhexyl esters
(CAS 135800-37-2) (Richterich, 2002). The study was accomplished
according to OECD guideline 301D.The biodegradability was tested at the
substance concentrations 2 mg/L and 5 mg/L respectively. The test was
terminated after 30 days. Based on the O2 consumption of the activated
sludge a degradation rate of 97% was determined at a substance
concentration of 2 mg/L. At a test concentration of 5 mg/L a degradation
rate > 65% was reached after 30 days of incubation. Thus, based on the
above mentioned results, and due to the structural and profile
similarities of the substances, 2-ethylhexanol nonanoate (CAS
59587-44-9) is considered to be readily biodegradable.
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