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EC number: 245-904-8 | CAS number: 23843-64-3
- 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
Endpoint summary
Administrative data
Link to relevant study record(s)
Description of key information
No studies are available. Based on molecular structure, molecular weight, water solubility, vapour pressure and octanol-water partition coefficient it can be expected that the substance is likely to be absorbed via the inhalation, dermal and oral route. Hydrolysis is expected to occur rapidly, and based on the physico-chemical parameters of the silanol containing degradation product, absorption via the gastrointestinal tract and to a lesser extend via the dermal and inhalation route are expected. Due to the high water solubility, the hydrolysis product is expected to be widely distributed in the body. Excretion via the renal route is considered favoured, and test material deposited in the stratum corneum is expected to be sloughed off with the skin cells. Thus, bioaccumulation is expected to be low.
Key value for chemical safety assessment
- Bioaccumulation potential:
- low bioaccumulation potential
Additional information
There are no studies available in which the toxicokinetic properties of 1-[3-(trimethoxysilyl)propyl]urea (CAS 23843-64-3) have been investigated. Therefore, the toxicokinetic behavior assessment of the substance and its hydrolysis product was estimated by its physico-chemical properties and the available toxicology studies on the substance itself. Based on molecular structure, molecular weight, water solubility, vapour pressure and octanol-water partition coefficient it can be expected that the substance is likely to be absorbed via the inhalation, dermal and oral routes. Hydrolysis is expected to occur rapidly, and based on the physico-chemical parameters of the silanol degradation product, absorption via the gastrointestinal tract and to a lesser extend via the dermal and inhalation route are expected. Due to the high water solubility, the hydrolysis product is expected to be widely distributed in the body. Excretion via the renal route is considered favoured, and test material deposited in the stratum corneum is expected to be sloughed off with the skin cells. Thus, bioaccumulation is expected to be low. The detailed toxicokinetic behaviour assessment of the substance and its hydrolysis products is attached to this section.
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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