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Diss Factsheets
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EC number: 204-984-4 | CAS number: 130-26-7
- 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
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- publication
- Title:
- Primary irritant dermatitis from topical clioquinol
- Author:
- Matti Kero1,*, Matti Hannuksekla1, Aslak Sothman2
- Year:
- 1 979
- Bibliographic source:
- Contact Dermatitis Volume 5, Issue 2, pages 115–117,
Materials and methods
- Principles of method if other than guideline:
- Primary irritation effets due to from topical clioquinol
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Clioquinol
- EC Number:
- 204-984-4
- EC Name:
- Clioquinol
- Cas Number:
- 130-26-7
- Molecular formula:
- C9H5ClINO
- IUPAC Name:
- 5-chloro-7-iodoquinolin-8-ol
Constituent 1
Test animals
- Species:
- human
- Strain:
- not specified
Test system
- Type of coverage:
- not specified
- Amount / concentration applied:
- 3% large crystal
- Duration of treatment / exposure:
- 2years
- Number of animals:
- seven patients
Results and discussion
In vivo
Results
- Irritation parameter:
- overall irritation score
- Basis:
- mean
- Remarks on result:
- other: irritant
Applicant's summary and conclusion
- Interpretation of results:
- irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- The clioquinol cause irritation to the human skin
- Executive summary:
During the 2-year period seven patients were studied with primary irritant dermatitis from topical preparations containing clioquinol. During the same period contact hypersensitivity to the compound was recorded in 35 eczema patients. Six of the seven patients with clioquinol irritancy had used creams containing 3% large crystal clioquinol and fluorinated steroids.
One patient had used 6% small crystal clioquinol cream. Challenge tests with 3% small crystal and large crystal clioquinol creams showed that crystal size did not affect the appearance of the appearance of irritant dermatitis.
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