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Diss Factsheets
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EC number: 452-110-7 | 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
![](https://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:
- 2003-06-12 to 2003-09-18
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study performed in accordance to guideline with no deviations
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:
- 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
- Principles of method if other than guideline:
- NA
- GLP compliance:
- yes (incl. QA statement)
Test material
- Test material form:
- liquid: viscous
- Details on test material:
- - Name of test material (as cited in study report): DEA/ACID ANHYDRIDE REACTION PRODUCT
- Physical state: highly viscous amber liquid
- Composition of test material, percentage of components:
Monomers: <17-35% (9-16% diethanolamine; 2-8% tetrahydrophthalic acid; 5-11% trimellitic acid; <0.1% tetrahydrophthalic anhydride; <0.8% trimellitic anhydride)
Dimers/trimers: <24-45%
Polymers: <10-25%
Not removable water: 5-15%
- Lot/batch No.: 200501.UN2810
- Expiration date of the lot/batch: september 2003
- Stability under test conditions: stable under storage condition
- Storage condition of test material: in the refrigerator in the original container away from direct sunlight
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: New Zealand White Rabbit, SPF
- Age at study initiation: 11 - 12 weeks (male), 9 - 10 weeks (females)
- Weight at study initiation: 1966 g (male), 2187 g (female), 2112 g (female)
- Housing: Individually in stainless steel cages equipped with feed hoppers and drinking water bowls. Wood blocks and haysticks were provided.
- Diet (e.g. ad libitum): Pelleted standard Provimi Kliba 3418 rabbit maintenance diet ad libitum (batch no. 28/03).
- Water (e.g. ad libitum): Community tap water from Füllinsdorf, ad libitum.
- Acclimation period: 2003-06-12 to 2003-06-16
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 17-23 °C
- Humidity (%): 30-70 %
- Air changes (per hr): 10-15 air changes per hour
- Photoperiod (hrs dark / hrs light): automatically controlled light cycle of 12 hours light and 12 hours dark. Music was played during the daytime light period.
IN-LIFE DATES: 2003-06-12 to 2003-06-20
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- shaved
- Vehicle:
- unchanged (no vehicle)
- Controls:
- not required
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 mL (per animal)
- Concentration (if solution): NA
VEHICLE
- Amount(s) applied (volume or weight with unit): NA
- Concentration (if solution): NA
- Lot/batch no. (if required): NA
- Purity: NA - Duration of treatment / exposure:
- 4 h
- Observation period:
- The mean score was calculated across 3 scoring times (24, 48 and 72 hours after patch removal) for each animal for erythema/eschar grades and for oedema grades, separately.
- Number of animals:
- 3
- Details on study design:
- TEST SITE
- Area of exposure: Four days before treatment, one flank was clipped with an electric clipper, exposing an area of approximately 100 cm2 (10 cm x 10 cm). The skin of the animals was examined one day before treatment, and regrown fur of all animals was again clipped. Animals with overt signs of skin injury or marked irritation which may have interfered with the interpretation of the results were not used in the test.
- % coverage: 0.5 mL was applied to the exposed skin area covering 2 to 2.5 cm2.
- Type of wrap if used: A surgical gauze patch was applied onto the test item area. The patch was covered with a semi-occlusive dressing. The dressing was wrapped around the abdomen and anchored with tape.
REMOVAL OF TEST SUBSTANCE
- Washing (if done): The duration of treatment was 4 hours. Then the dressing was removed and the skin was flushed with lukewarm tap water to clean the application site so that any reactions (erythema) were clearly visible at that time.
- Time after start of exposure: 4 hours
SCORING SYSTEM: The skin reaction was assessed according to the numerical scoring system listed in the EEC Commission Directive 92/69/EEC, July 31, 1992 approximately 1, 24, 48 and 72 hours after the removal of the dressing, gauze patch and test item. Erythema/eschar grades and for oedema grades were recorded accordingly.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Remarks:
- (mean score)
- Time point:
- other: overall at 24, 48 and 72 h
- Score:
- 0
- Max. score:
- 1
- Reversibility:
- fully reversible
- Remarks on result:
- other: Max. duration: 1h; Max. value at end of observation period: 0
- Irritation parameter:
- erythema score
- Basis:
- animal #2
- Remarks:
- (mean score)
- Time point:
- other: overall at 24, 48 and 72 h
- Score:
- 0
- Max. score:
- 1
- Reversibility:
- fully reversible
- Remarks on result:
- other: Max. score of 1 after 1h; Max. value at end of observation period: 0
- Irritation parameter:
- erythema score
- Basis:
- animal #3
- Remarks:
- (mean score)
- Time point:
- other: overall at 24, 48 and 72 h
- Score:
- 0
- Max. score:
- 1
- Reversibility:
- fully reversible
- Remarks on result:
- other: Max. score of 1 after 1h; Max. value at end of observation period: 0
- Irritation parameter:
- edema score
- Basis:
- animal #1
- Remarks:
- (mean score)
- Time point:
- other: overall at 24, 48 and 72 h
- Score:
- 0
- Irritation parameter:
- edema score
- Basis:
- animal #2
- Remarks:
- (mean score)
- Time point:
- other: overall at 24, 48 and 72 h
- Score:
- 0
- Irritation parameter:
- edema score
- Basis:
- animal #3
- Remarks:
- (mean score)
- Time point:
- other: overall at 24, 48 and 72 h
- Score:
- 0
- Irritant / corrosive response data:
- The application of AAA reaction product to the skin resulted in mild signs of irritation. These included erythema. These effects were reversible and were no longer evident 24 hours after treatment. AAA reaction product caused no staining of the treated skin. No corrosive effects were noted on the treated skin of any animal at any of the measuring intervals and no other clinical signs of AAA reaction product related effects were observed.
- Other effects:
- Very slight erythema was observed in all animal at the 1-
hour reading.
No staining produced by the test item of the treated skin
was observed.
Neither alterations of the treated skin were observed nor
were corrosive effects evident on the skin.
The body weights of all the rabbits were considered to be
within the normal range of variability.
Any other information on results incl. tables
Overall assessment of irritation scores in accordance to EEC grading systems
Erythema: Not irritating
Edema: Not irritating
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- The primary skin irritation potential of AAA reaction product was evaluated according to OECD 404. Mild signs of irritation in terms of erythema was observed after 1 hour. These effects were reversible and were no longer evident 24 hours after treatment. AAA reaction was found to be "not irritating" to rabbit skin and is therefore not classified accordingly.
- Executive summary:
The primary skin irritation potential of AAA reaction product was evaluated according to OECD 404. AAA reaction product was applied by topical semi-occlusive application of 0.5 mL to the intact left flank of each of three young adult New Zealand White rabbits. The duration of treatment was four hours. The scoring of skin reactions was performed 1, 24, 48 and 72 hours after removal of the dressing. The mean score was calculated across 3 scoring times (24, 48 and 72 hours after patch removal) for each animal for erythema/eschar grades and for oedema grades, separately.
The mean erythema/eschar score of the three animals was 0.00; 0.00 and 0.00, respectively and the mean oedema score was 0.00, 0.00 and 0.00, respectively. The application of AAA reaction product to the skin resulted in mild signs of irritation. These included erythema. These effects were reversible and were no longer evident 24 hours after treatment. No staining of the treated skin was seen. No corrosive effects were noted on the treated skin of any animal at any of the measuring intervals and no other clinical signs were observed. Based on these data, AAA reaction product is considered to be “not irritating” to rabbit skin and are therefore not classified accordingly.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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