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EC number: 400-830-7 | CAS number: 104810-48-2 EVERSORB 80; TINUVIN 1130; TINUVIN 213
- 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 and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
The primary degradation from water and sediment goes rapidly.
Key value for chemical safety assessment
Additional information
According to regulation (EC) No 1907/2006, Annex XI, paragraph 1.5., substances whose physicochemical, toxicological and ecotoxicological properties are likely to be similar or follow a regular pattern as a result of structural similarity may be considered as a group, or "category" of substances. Environmental effects or environmental fate may be predicted from data for reference substance(s) within the group by interpolation to other substances in the group (read-across approach). The substance consists of two main components, a diester (35.4 % ) and a monoester (51.0 %). Both of these components are uvcb substances with varying side and middle chain lengths, respectively.
An analogous substance (EC No. 407-000-3) is available with close structural similarities to the monoester component. Its physico-chemical properties, the toxicological and ecotoxicological profile as well as the environmental fate are comparable to the monoester of EC No. 400-830-7. Therefore, read-across to EC No. 407-000-3 is scientifically justified for physico-chemical, the toxicological and ecotoxicological profile as well as environmental fate.
In a study on EC 407-000-3 following OECD guideline 308 the degradation in water/sediment systems was investigated under aerobic and anaerobic conditions (Ciba 851895 and 851896).
Under aerobic conditions the substance migrated rapidly from the water phase into the sediment, with a half-life of about a day. In the sediment a mean half-life of about 8 days was calculated. Several degradation products were determined. The main degradation product resulted from ester hydrolysis of the substance to 3-[3-tert-butyl-5-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] propionic acid. This metabolite degraded with a half-life of about 40 to 64 days. The mineralization of the substance was low (approx. 1 %) and organic volatile compounds were not formed. A part of the test item got stably bound to the immobile organic matter of the sediment.
In conclusion, in aerobic aquatic systems, the test substance (EC 407-000-3) is initially transformed to the hydrolysis product 3-[3-tert-butyl-5-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] propionic acid followed by degradation to numerous minor fractions and incorporation of residues into the organic matter of the sediment. The mineralization was insignificantly low.
Under anaerobe conditions similar results occur. The parent compound disappeared rapidly from the aquatic systems (half-life of 20.4 days) to form 3-[3-tert-butyl-5-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] propionic acid and bound residues. As under aerobic conditions the mineralization of the metabolite was insignificantly low. The results of this study indicate that the test substance (EC 407-000-3) rapidly disappears from aquatic systems to from 3-[3-tert-butyl-5-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] propionic acid and low amounts of bound residues.
In conclusion, under aerobic conditions the test substance (EC 407-000-3; which is structurally highly similar to the monoester of EC 400-830-7) degrades to 3-[3-tert-butyl-5-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] propionic acid followed by degradation to numerous minor fractions and incorporation of residues into the organic matter of the sediment. The DT50 values for 3-[3-tert-butyl-5-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] propionic acid are 40 to 64 days. Under anaerobic conditions EC 407-000-3 rapidly disappears from aquatic systems to form 3-[3-tert-butyl-5-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] propionic acid and bound residues. The mineralization was insignificantly low.
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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