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Diss Factsheets
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EC number: 202-009-7 | CAS number: 90-66-4
- 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
Basic toxicokinetics
Administrative data
- Endpoint:
- basic toxicokinetics, other
- Remarks:
- Written assessment
- Type of information:
- other: Written assessment
- Adequacy of study:
- other information
- Study period:
- April 2018
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Written assessment
- Justification for type of information:
- At the current level of registration, a written assessment is suitable.
Data source
Reference
- Reference Type:
- other: Written assessment
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
- Objective of study:
- other: Written assessment of ADME
Test guideline
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- Written assessment based on available study data.
Test material
- Reference substance name:
- 6,6'-di-tert-butyl-2,2'-thiodi-p-cresol
- EC Number:
- 202-009-7
- EC Name:
- 6,6'-di-tert-butyl-2,2'-thiodi-p-cresol
- Cas Number:
- 90-66-4
- Molecular formula:
- C22H30O2S
- IUPAC Name:
- 6,6'-di-tert-butyl-2,2'-thiodi-p-cresol
- Test material form:
- solid: particulate/powder
- Details on test material:
- Name: 6,6’-di-tert-butyl-2,2’-thiodi-p-cresol
Other name: LOWINOX® TBP-6
CAS number: 90-66-4
Batch/Lot Number: C036K0111
Description: White powder
Purity*: 99.8%
Expiry date: 29 March 2018
Storage condition: Controlled room temperature (15-25 ºC, below 70 RH%)
Safety precautions: Routine safety precautions (gloves, goggles, face mask, lab coat) for unknown materials were applied to assure personnel health and safety.
Constituent 1
Results and discussion
Toxicokinetic / pharmacokinetic studies
- Details on absorption:
- See attached background material below.
- Details on distribution in tissues:
- See attached background material below.
- Details on excretion:
- See attached background material below.
Metabolite characterisation studies
- Details on metabolites:
- See attached background material below.
Bioaccessibility (or Bioavailability)
- Bioaccessibility (or Bioavailability) testing results:
- See attached background material below.
Applicant's summary and conclusion
- Conclusions:
- In conclusion, there is no evidence to suggest that the substance is significantly absorbed via any of the routes due to its physicochemical properties, this is coupled with the lack of effects shown in the in vivo studies, a 100% absorption rate is proposed as a worst case for oral, dermal and inhalation routes.
It is likely that the following ingestion, the substance undergoes conjugation with glucuronic acid and sulfate within the gastrointestinal tract. Following absorption, the fatty acids are transported to the tissues of the body including the liver where they undergo oxidation in the cells. These solubilised metabolites are then most probably excreted in the urine in conjugated form. Consequently, the substance is considered to have low bioaccumulation potential. - Executive summary:
In conclusion, there is no evidence to suggest that the substance is significantly absorbed via any of the routes due to its physicochemical properties, this is coupled with the lack of effects shown in the in vivo studies, a 100% absorption rate is proposed as a worst case for oral, dermal and inhalation routes.
It is likely that the following ingestion, the substance undergoes conjugation with glucuronic acid and sulfate within the gastrointestinal tract. Following absorption, the fatty acids are transported to the tissues of the body including the liver where they undergo oxidation in the cells. These solubilised metabolites are then most probably excreted in the urine in conjugated form. Consequently, the substance is considered to have low bioaccumulation potential.
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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