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Diss Factsheets
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EC number: 945-734-0 | 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
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- 2018
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Qualifier:
- according to guideline
- Guideline:
- other: REACH Guidance R.6: QSARs and grouping of chemicals. Version May 2008.
- Deviations:
- not applicable
- GLP compliance:
- no
- Specific details on test material used for the study:
- SMILES of Ethyl dodecanoate/laurate being representative for Oenanthic ether): O=C(OCC)CCCCCCCCCCC (
- Test organisms (species):
- other: Daphnia
- Water media type:
- freshwater
- Total exposure duration:
- 48 h
- Key result
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 1.456 mg/L
- Nominal / measured:
- estimated
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Remarks:
- mobility
- Remarks on result:
- other: ECOSAR class: Esters
- Validity criteria fulfilled:
- yes
- Remarks:
- The ECOSAR-Esters equation is valid when using the OECD criteria. In addition, N=40 (+21) and R2 is 0.798
- Conclusions:
- Based on the ECOSAR v1.11 (Q)SAR, the predicted EC50 of Oenanthic ether to daphnids is 1.456 mg/L.
- Executive summary:
The acute Daphnia EC50 for Oenanthic ether is predicted to be 1.456 mg/L based on the ECOSAR SAR for esters using a measured log Kow of 4.6 and the equation: Log 48-h LC50 (mmol/L) = -0.6305 (log Kow) + 0.7049. The 48-h LC50 is considered equivalent to the 48-h EC50 as defined in OECD TG 202. Though Oenanthic ether is a multi-constituent with alkyl chains varying between C8-C18, a single log Kow was derived in the HPLC, which is thought to be representing the main constituent of Oenanthic ether: Ethyl dodecenoate/laurate and has a C12 alkyl chain.
Oenanthic ether is in the applicability domain of the ECOSAR prediction because: a) Oenanthic ether is a chemical class presenting the toxicity solely by its bioavailability (i.e. without fragments that activate this chemical class); b) its log Kow is 4.6 (=< 5); c) its MW is < 1000 (< 1000); and; d) the toxicity predicted is below its measured water solubility of 1.6 mg/L.
A measured log Kow of 4.6 is entered as input for the calculation, because this log Kow value was the only peak found for Oenanthic ether in the log Kow chromatogram.
In accordance with REACH Annex XI, the validity of the (Q)SAR is documented in a QMR for acute Daphnia toxicity on esters (see attached report). The adequate and reliable documentation, presented below, further supports this prediction.
Reference
Description of key information
For Oenanthic ether an EC50 of 1.46 mg/l for Daphnia is derived, based on ECOSAR prediction using the determined log Kow of 4.6.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 1.46 mg/L
Additional information
The acute Daphnia EC50 for Oenanthic ether is predicted to be 1.456 mg/L based on the ECOSAR SAR for esters using a measured log Kow of 4.6 and the equation: Log 48-h LC50 (mmol/L) = -0.6305 (log Kow) + 0.7049. The 48-h LC50 is considered equivalent to the 48-h EC50 as defined in OECD TG 202. Though Oenanthic ether is a multi-constituent with alkyl chains varying between C8-C18, a single log Kow was derived in the HPLC, which is thought to be representing the main constituent of Oenanthic ether: Ethyl dodecenoate/laurate and has a C12 alkyl chain.
Oenanthic ether is in the applicability domain of the ECOSAR prediction because: a) Oenanthic ether is a chemical class presenting the toxicity solely by its bioavailability (i.e. without fragments that activate this chemical class); b) its log Kow is 4.6 (=< 5); c) its MW is < 1000 (< 1000); and; d) the toxicity predicted is below its measured water solubility of 1.6 mg/L.
A measured log Kow of 4.6 is entered as input for the calculation, because this log Kow value was the only peak found for Oenanthic ether in the log Kow chromatogram.
In accordance with REACH Annex XI, the validity of the (Q)SAR is documented in a QMR for acute Daphnia toxicity on esters (see attached report). The adequate and reliable documentation, presented below, further supports this prediction.
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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