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Diss Factsheets
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EC number: 911-369-0 | 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The Ready Biodegradability of Cyclacet was determined by the Manometric Respirometry Test according to the OECD Guidelines for Testing of Chemicals, Method No. 301 F. The concentration tested was 100 mg/l Cyclacet, with an activated sludge concentration of 30 mg/l. Cyclacet undergoes only 10 % biodegradation after 28 days in the test conditions. Thus, Cyclacet should be regarded as not readily biodegradable under the conditions in this test.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
In addition to the ready biodegradation of Cyclacet also the ready biodegradability of Cyclabute is presented because Cyclacet will follow a similar pathway as Cyclabute.Therefore the Cyclabute ready biodegradation test is summarised here to support the DT50 information, which is discussed in the Biodegradation Overall Endpoint summary together with the analogue justification.
Cyclabute's ready biodegradability test
The ready biodegradability of Cyclabute was determined according to OECD guideline 301F (manometric respirometry test). Cyclabute undergoes 22% biodegradation after 28 days (23% biodegradation after 60 days, 23% biodegradation after 61 days) under the test conditions. The curve obtained with the reference substance alone and with Cyclabute + reference substance shows no toxic effect of Cyclabute to the micro-organisms at the test concentration (100 mg/L). Cyclabute should be regarded as not readily biodegradable under the conditions of this test. After the 61 days the primary degradation products were determined as well as their log Kow values. No Cyclabute was found and Cyclabute's alcohol was the main metabolite (82%) and Cyclabute's ketone the minor metabolite (18%). Their log Kows were 2.4 and 3.2, respectively.
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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