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Diss Factsheets
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EC number: 942-925-0 | CAS number: -
- 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:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: guideline study under GLP conditions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Azo zinc complex Pigment - Melamine compound
- IUPAC Name:
- Azo zinc complex Pigment - Melamine compound
- Test material form:
- other: brown powder
- Details on test material:
- Molecular weight 615.79
Lot no.BOS3479-3105
purity/content: 100 %
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Age at study initiation: 3 month
- Weight at study initiation: 1856.1 - 2007.1 g
- Housing:
- Diet ad libitum
- Water ad libitum
- Acclimation period: 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20
- Humidity (%): 50
- Air changes (per hr): 10-15
- Photoperiod (hrs dark / hrs light) 12/12
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- clipped
- Vehicle:
- other: moistened with the smallest amount of water to ensure good skin contact
- Controls:
- other: the opposite site of the back
- Amount / concentration applied:
- 500 mg
- Duration of treatment / exposure:
- 4 hours
- Observation period:
- up to 72 hours post treatment
- Number of animals:
- 3
- Details on study design:
- On the day prior to application the back of each rabbit was clipped free of hairs. The test substance was moistened with the smallest amount of water sufficint to ensure good skin contact.. Onto the one site of the back 0.5 g/site of prepared test substance was applied to a small area (approx 6cm² of skin and covered with a gauze patch, which is held in place with non-irritating tape. The entire trunk of the amimals were wrapped with mon-toxic adhesive tape for 4 hours. The applied sites were washed out gently with sterilized distilled water.
Test substance was applied sequentially to one animal, first patch for 3 minutes, second patch for one our and third patch for 4 hours
The confirmation test was conducted because corrosive effect was not observed in the initial test. 2 amimals were treated with a single patch which was removed after 4 hours.
Animals were observed for clinical signs, changes in body weight, and observations of application sites for erythema and edema for about 72 hours post treatment
Evaluation according to Draize 1944: J Pharmacol Exp Ther 82, 377-390
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- mean
- Time point:
- other: total observation period of 72 hours
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no erythema observed
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- other: total observation period of 72 hours
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no edema observed
- Irritant / corrosive response data:
- No corrosive effects were noted in the treated skin of any animals at any of the measuring intervals
After application of the test substance the dermal irritation was not shown in this study. - Other effects:
- No mortality was observed; no treatment-related clinical signs. All tested animals showed normal gains in body weight
Applicant's summary and conclusion
- Executive summary:
The acute dermal irritation potential of Azo zinc complex pigment - melamine compound was investigated in 3 rabbits according to OECD TG 404 under GLP conditions. 500 mg of the test substance was applied to the shaved skin and covered by semi-occlusive dressing for 4 hours. Up to 72 hours post application the animals were obsetved for clinical signs, mortality, body weight development and the treated area for erythema and edema.
No mortality was observedn no clinical signs related to treatment were noted; all animals showed normal gains in body weight.
No corrosive effects were noted on the treated skin of any animal at any of the measuring intervals. After application of test substance the dermal irritation was not shown in this study.
Based on these results Azo zinc complex pigment - melamine compound is considered to be non-irritant to the skin
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