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EC number: 271-880-3 | CAS number: 68610-90-2
- 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
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Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable: 60-70 % based on CO2 evolution and oxygen consumption, read across
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
As no study is available for assessing the biodegradability of 2-Butenedioic acid (E)-, di-C8-18-alkyl esters (CAS 68610-90-2), in accordance to Regulation (EC) No. 1907/2006 Annex XI, 1.5 Grouping of substances, a read-across to the structurally related category members Didodecyl fumarate (CAS 2402-58-6, MW 453 g/mol), Ditetradecyl fumarate (CAS 10341-03-4, MW 509 g/mol) and 2-Butenedioic acid (E)-, di-C18-22-alkyl esters (CAS 68921-53-9, MW 621-733 g/mol) was conducted. 2-Butenedioic acid (E)-, di-C8-18-alkyl esters (CAS 68610-90-2) exhibits a molecular weight range of 340.5 - 621 g/mol. Thus, the read across is covered by interpolation for this substance. The read across is justified due to a) the structural similarity of the category members and b) similar physico-chemical properties resulting in a similar environmental fate and ecotoxicity profile.
Further justification for read-across is given in section 13 of IUCLID .
The study with Didodecyl fumarate (CAS 2402-58-6) was conducted according to ISO guideline 10708 (BODIS test) under aerobic conditions using non-adapted activated sludge as inoculum (Börner, 1995). An initial test concentration of 100 mg/l (COD) was applied. Based on O2 consumption a mean degradation of 67 % was observed after 28 days. The 14-day window was not passed. Hence, the substance is not readily biodegradable according to OECD criteria Nevertheless, as the overall pass level of 60 % O2 consumption for a BODIS test was passed within the 28 day exposure period, the substance is determined to be “readily biodegradable, but failing 10 window”.
The study with Ditetradecyl fumarate (CAS 10341-03-4) was conducted according to OECD 301B under aerobic conditions using non-adapted activated sludge as inoculum (Schwarz, 2012). An initial test concentration of 20 mg/l (TOC) was applied. Based on CO2 evolution a mean degradation of 71 % was observed after 28 days. The 10-day window was not passed. Hence, the substance is not readily biodegradable according to OECD criteria. Nevertheless, as the overall pass level of 60 % CO2 evolution for an OECD 301B test was passed within the 28 day exposure period, the substance is determined to be “readily biodegradable, but failing 10 window”. In addition, the test was enhanced up to 60 days resulting in a high overall biodegradation of 90 %.
The study with 2-Butenedioic acid (E)-, di-C18-22-alkyl esters (CAS 68921-53-9) was conducted according to OECD 301B under aerobic conditions using non-adapted activated sludge as inoculum (Schwarz, 2013). An initial test concentration of 20 mg/l (TOC) was applied. Based on CO2 evolution a mean degradation of 62 % was observed after 28 days. According to “OECD Guidelines for the testing of chemicals – Revised introduction to the OECD guidelines for testing of chemicals, Section 3 – Part 1: Principles and strategies related to the testing of degradation of organic chemicals degradation” published by OECD (2006) the ready biodegradability data for mixtures should be evaluated carefully. For substances with different chain lengths the 10-day window should not be used for the interpretation of the results. It is possible that a sequential biodegradation occurred which might have led to a prolonged lag-Phase and therefore a slower biodegradation period. In this case only the pass level at 28 days has to be applied. Hence, the test substance is determined to be readily biodegradable according to OECD criteria.
In addition, the test was enhanced up to 60 days resulting in high overall biodegradation rates of 82-91 % biodegradation, showing that complete and ultimate will occur for this substance.
Due to the structural and property similarities with the tested category member Didodecyl fumarate (CAS 2402-58-6), Ditetradecyl fumarate (CAS 10341-03-4) and 2-Butenedioic acid (E)-, di-C18-22-alkyl esters (CAS 68921-53-9), the results are applicable to read across to 2-Butenedioic acid (E)-, di-C8-18-alkyl esters (CAS 68610-90-2).
Conclusion:
2-Butenedioic acid (E)-, di-C8-18-alkyl esters (CAS 68610-90-2) is a substance of variable composition (UVCB). For these substances, the 10-day window criterion for ready biodegradability is not applicable and the 28 day pass level can be used for assessing the biodegradability of the substance in question. Based on the fact that in all tests presented above, the respective pass level was reached (i.e. > 60 % CO2 evolution or oxygen consumption), 2-Butenedioic acid (E)-, di-C8-18-alkyl esters (CAS 68610-90-2) is regarded as readily biodegradable. Therefore, the substance will not be persistent, but will in fact be rapidly removed from the environment.
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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