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EC number: 444-860-9 | CAS number: 474510-57-1
- 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
![](https://chesar.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2002-10-08 to 2002-10-17
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 003
- Report date:
- 2003
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
- Version / remarks:
- adopted 1992
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Version / remarks:
- adopted 1992
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- -
- EC Number:
- 444-860-9
- EC Name:
- -
- Cas Number:
- 474510-57-1
- Molecular formula:
- C21 H24 O4
- IUPAC Name:
- 2-hydroxy-1-(4-{[4-(2-hydroxy-2-methylpropanoyl)phenyl]methyl}phenyl)-2-methylpropan-1-one
- Details on test material:
- - Description: Slightly yellow powder
- Purity: 94.1%
- Stability of test item: Stable under storage conditions
- Storage conditions: In the original container, at room temperature (range of 17-23 °C), protected from light. The test item is light sensitive and was handled in a dark room.
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Elevage Scientifique des Dombes; F-01400 Chatillon sur Chalaronne / France
- Age at study initiation: 10 weeks (male); 20 weeks (females)
- Weight at study initiation: male: 2173 g; female: 3018 g (mean)
- Housing: Individually in stainless steel cages
- Diet: Pelleted standard Provimi Kliba 3418 rabbit maintenance diet ad libitum
- Water: Community tap water from Fullinsdorf, ad libitum.
- Acclimation period: 6 days
ENVIRONMENTAL CONDITIONS
- Temperature: 17-23 °C
- Humidity: 30-70%
- Air changes: 10-15 air changes per hour
- Photoperiod: 12 hours light and 12 hours dark
IN-LIFE DATES: From: 08-Oct-2002 To: 17-Oct-2002
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- shaved
- Vehicle:
- water
- Controls:
- not required
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 g
- Concentration (if solution): 0.5 g/0.1 mL
VEHICLE
- Amount(s) applied (volume or weight with unit): 0.1 mL - Duration of treatment / exposure:
- 4 hours
- Observation period:
- 72 hours (reading performed at 1, 24, 48 and 72 hours)
- Number of animals:
- 3 (animals of both sexes were used)
- Details on study design:
- TEST SITE
- Area of exposure: 100 cm2 (10 cm x 10 cm)
- % coverage: no data
- Type of wrap if used:semi-occlusive dressing
REMOVAL OF TEST SUBSTANCE
- Washing: with lukewarm tap water to clean the application site
- Time after start of exposure: 4 hours
SCORING SYSTEM: the numerical scoring system listed in the EEC Commission Directive 92/69/EEC, July 31, 1992
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Remarks:
- male
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- other: no effects
- Irritation parameter:
- erythema score
- Basis:
- animal #2
- Remarks:
- female
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- other: no effects
- Irritation parameter:
- erythema score
- Basis:
- animal #3
- Remarks:
- female
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- other: no effects
- Irritation parameter:
- erythema score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- other: no effects
- Irritation parameter:
- edema score
- Basis:
- animal #1
- Remarks:
- male
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- other: no effects
- Irritation parameter:
- edema score
- Basis:
- animal #2
- Remarks:
- female
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- other: no effects
- Irritation parameter:
- edema score
- Basis:
- animal #3
- Remarks:
- female
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- other: no effects
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- other: no effects
- Irritant / corrosive response data:
- - Irritation:
The test item did not elicit any skin reactions at the application site of any animal at any of the observation times (all scores 0).
- Corrosion:
No corrosive effects were evident on the skin. - Other effects:
- - Viability/mortality/clinical signs:
No clinical signs of systemic toxicity were observed in the animals during the study and no mortality occurred.
- Coloration:
No irreversible alterations of the treated skin were observed.
- Body weights:
The body weights of all rabbits were considered to be within the normal range of variability.
Any other information on results incl. tables
The test item is considered to be "not irritating" to rabbit skin.
Applicant's summary and conclusion
- Interpretation of results:
- not irritating
- Conclusions:
- The test material was found to be not dermally irritating to the Rabbit under the conditions of the test.
- Executive summary:
In this guideline (OECD 404) study conducted with GLP, the test material (EC 444-860-9) was induced mean erythema and edema scores of 0.0 in all test animals (rabbit) across the 24, 48, & 72 hour observation periods. The test material was exposed to the test animals (intact skin, 4 hours) under semi-occlusive conditions. The result of the test is not sufficient to meet the criteria for classification as a skin irritant under the criteria of the EU Classification, Labelling, and Packaging (CLP) regulation (1272/2008).
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