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Diss Factsheets
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EC number: 943-359-7 | CAS number: 2149581-44-0
- 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_environmental-fate-and-pathways.png)
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline Study with detailed documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- MAEEBP
- IUPAC Name:
- MAEEBP
- Details on test material:
- - Name of test material (as cited in study report): MAEEBP- Physical state: colourless liquid- Composition of test material, percentage of components: 4-methacryloyl diethoxy benzophenone 85 area%, impurities 4-hydroxybenzophenone <5%, 4-methacryloyl benzophenone <5%, polymethacrylate <5%- Lot/batch No.: 150301- Expiration date of the lot/batch: Sep. 2015- Storage condition of test material: The test item was stored in the test facility in a closed vessel in the refrigerator (3.9-9.2°C) (exception: 22.- 28. Apr. 2015 storage at room temperature).
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge: Activated sludge from a biologic sewage treatment plant of the ESN (Stadtentsorgung Neustadt), Germany- Pre-treatment: The sludge was filtrated, washed with tap water twice, then washed with and re-suspended in test medium. It was then aerated until use.- Concentration of sludge: 4540 mg suspended solids/L (dry matter)
- Duration of test (contact time):
- 29 d
Initial test substance concentration
- Initial conc.:
- 20 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- TEST SYSTEM- Culturing apparatus: 2000 mL-SCHOTT-flasks were used as test vessels, 100 mL scrubber flasks as absorbent vessels. Flask volume 1500 mL- Number of culture flasks/concentration: 2- Method used to create aerobic conditions: The test vessels were filled with medium and inoculum. Then, all flasks were aerated for 72 hours with purified, CO2-free, moistened air to purge the system of CO2.- Measuring equipment: carbon analyser TOC multi N/C 2100S, Analytik JenaSAMPLING- Sampling frequency: on day 0, 2, 4, 7, 9, 11, 14, 18, 23 and 29CONTROL AND BLANK SYSTEM- Inoculum blank: 2 flasks- Reference: 2 flasks- Abiotic sterile control: 1 flask (HgCl2)- Toxicity control: 1 flask - Other: Apparatus blanks, 2 flasks, containing mineral medium only
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 43
- Sampling time:
- 28 d
Any other information on results incl. tables
Degradation values after 29 d:
Positive control mean: 86.8%
Test mean: 42.7%
Abiotic control: -1.4%
Toxicity control: 53.7%
10-day-window: day 12 – 22
Degradation at the end of 10-day-window 25 %
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- inherently biodegradable
- Conclusions:
- The test item MAEEBP was tested using a concentration of nominally 20 mg organic carbon/L (corresponding to 28.5 mg MAEEBP/L) in test medium following OECD 301B and EU-Method C.4-C. The test item degraded to 43% within 28 days. Therefore, regardless of the 10-day-window, MAEEBP is not readily biodegradable following OECD 301B/EU C.4-C.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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