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EC number: 419-720-5 | CAS number: 182061-89-8
- 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
- Study period:
- 21 June 1995 to 3 July 1995
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, performed to valid guidelines and the study was conducted under GLP conditions.
Cross-reference
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
- Report date:
- 1995
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 419-720-5
- EC Name:
- -
- Cas Number:
- 182061-89-8
- Molecular formula:
- C25H26N9O12S3 . 3 Na
- IUPAC Name:
- trisodium 6-amino-5-{2-[4-({4-[bis(2-hydroxyethyl)amino]-6-[(2-sulfonatoethyl)amino]-1,3,5-triazin-2-yl}amino)-2-sulfonatophenyl]diazen-1-yl}-4-hydroxynaphthalene-2-sulfonate
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- - Name of test material (as cited in study report): M-377
- Physical state: solid
- Appearance: garnet powder
- Storage condition of test material: room temperature and protected from light
- pH of substance: 8.3 (measured at a concentration of 10% w/w in distilled water)
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Sex: male
- Weight at study initiation: 2.4 ± 0.1 kg (mean)
- Housing: individually in polystyrene cages
- Diet: pelleted diet, ad libitum
- Water: filtered drinking water (0.22 µm), ad libitum
- Acclimation period: at least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18 ± 3 °C
- Humidity (%): 30 - 70 %
- Photoperiod (hrs dark / hrs light): 12 hours dark / 12 hours light
IN-LIFE DATES: From 21 June 1995 to 3 July 1995
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- clipped
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 500 mg - Duration of treatment / exposure:
- 4 hours
- Observation period:
- 3 days post administration
- Number of animals:
- 3 male animals
- Details on study design:
- TEST SITE
- Area of exposure: On the day prior to application, the flanks of each animal were clipped using electric clippers. A dose of 500 mg of test material was applied to a 6 cm² hydrophilic gauze pad moistened with 0.5 mL of distilled water and this was then applied to the right flank of the animals for 4 hours. The left flank did not receive any test material and served as an untreated control.
- Type of wrap if used: The test material and gauze pad were held in contact with the skin by means of an adhesive hypoallergenic aerated semi-occlusive dressing and a restraining bandage.
REMOVAL OF TEST SUBSTANCE
- Washing (if done): At the end of the exposure period, the dressing was removed and any residual test material was wiped off with a gauze pad moistened with water.
- Time after start of exposure: approximately 4 hours
SCORING SYSTEM:
The Draize scale, presented as table 1 in the field "Any other information on material and methods incl. tables" was used to assess the degree of erythema and oedema at the application sites approximately 1 hour and 1, 2 and 3 days after the removal of the dressings. Any other lesions were recorded.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- other: 24, 48 and 72 hours
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: not applicable since no skin reaction was noted in any of the animals
- Irritation parameter:
- erythema score
- Basis:
- mean
- Time point:
- other: 24, 48 and 72 hours
- Max. score:
- 4
- Reversibility:
- no data
- Remarks on result:
- other: Scores for erythema could not be determined due to the skin colouration caused by the test material
- Irritant / corrosive response data:
- No oedema was noted at any time point.
- Other effects:
- Moderate to very slight purple colouration of the test site was noted on all animals which masked any observations of erythema of grades 1 to 3. The colouration persisted for 10 to 12 days post test material application.
Any other information on results incl. tables
Table 2: Results
Rabbit number |
Dermal irritation |
Scores |
Mean irritation score |
|||
1 h |
24 h |
48 h |
72 h |
|||
1 |
Erythema |
C2 |
C2 |
C2 |
C2 |
(2) |
Oedema |
0 |
0 |
0 |
0 |
0 |
|
2 |
Erythema |
C2 |
C2 |
C2 |
C2 |
(2) |
Oedema |
0 |
0 |
0 |
0 |
0 |
|
3 |
Erythema |
C3 |
C3 |
C3 |
C2 |
(2) |
Oedema |
0 |
0 |
0 |
0 |
0 |
C2 = purple colouration of the skin would mask an erythema score of grades 1 or 2
C3 = purple colouration of the skin would mask an erythema score of grades 1 or 3
(2) = not calculated
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- Under the conditions of the test, the test material did not elicit any reaction in any of the animals during the course of the study that meant the test material required classification as a skin irritant. The study is considered to be reliable, relevant and adequate for risk assessment and classification and labelling purposes.
- Executive summary:
The skin irritation potential of the test material was determined in accordance with standardised guidelines OECD 404 and EU Method B.4. Three rabbits received a single four hour application of 500 mg of the test material and were assessed for the following 3 days for any signs of skin irritation. The mean score over 24, 48 and 72 hours for each individual animal was 0.0 for oedema. Scores for erythema could not be calculated due to skin colouration. Due to skin colouration, evaluation of skin irritation could not be made. However, the absence of oedema in this study, the very weak ocular reactions observed in the acute eye irritation study (rabbits; de Jouffrey 1995b) and the absence of local effects observed in an acute dermal study (rat; de Jouffery 1996a) allows us to conclude that the test material is not a skin irritant based on expert judgment.
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