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EC number: 282-823-7 | CAS number: 84434-23-1
- 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
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- Not specified
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- A valid study is available for the analogue substance 3-(4-tert-butylphenyl)propionaldehyde. The study was performed in line with good scientific principles in basic compliance with agreed protocols, with no or minor deviations from standard testing guidelines. The read-across is considered to be suitable based on the structural and “mechanistic action” similarities between the target substance (3-(4-tert-butylphenyl)acrylaldehyde) and source substance (3-(4-tert-butylphenyl)propionaldehyde) and their similar physico-chemical properties.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 980
- Report date:
- 1980
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: FDA Standards
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Deviations:
- yes
- Remarks:
- The test material was applied to both abraded and intact skin. A patch was not used to cover the test site to prevent ingestion. Removal of the test material was not reported, exposure was assumed to be 72 hours. Recovery of the animals was not evaluated.
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 3-(4-tert-butylphenyl)propionaldehyde
- EC Number:
- 242-016-2
- EC Name:
- 3-(4-tert-butylphenyl)propionaldehyde
- Cas Number:
- 18127-01-0
- IUPAC Name:
- 3-(4-tert-butylphenyl)propanal
- Test material form:
- other: liquid
- Details on test material:
- - Substance type: clear colourless liquid
- Physical state: Liquid
- Molecular formula (if other than submission substance): C13H18O
- Molecular weight (if other than submission substance): 190.2814
- Smiles notation (if other than submission substance): CC(C)(C)c1ccc(CCC=O)cc1
- InChl (if other than submission substance): InChI=1/C13H18O/c1-13(2,3)12-8-6-11(7-9-12)5-4-10-14/h6-10H,4-5H2,1-3H3
- Structural formula attached as image file (if other than submission substance): see Fig. 1
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 rabbits were supplied by an accredited supplier.
- Age at study initiation:
Adult
- Weight at study initiation:
At the start of the study the animals were in the weight range of 2.5 - 3.0 kg
- Housing:
Not specified in the report
- Diet (e.g. ad libitum):
Not specified in the report
- Water (e.g. ad libitum):
Not specified in the report
- Acclimation period:
Not specified in the report
ENVIRONMENTAL CONDITIONS
- Temperature (°C):
Not specified in the report
- Humidity (%):
Not specified in the report
- Air changes (per hr):
Not specified in the report
- Photoperiod (hrs dark / hrs light):
Not specified in the report
Test system
- Type of coverage:
- open
- Preparation of test site:
- shaved
- Vehicle:
- unchanged (no vehicle)
- Remarks:
- undiluted test material
- Controls:
- yes
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit):
0.2 mL
- Concentration (if solution):
Not applicable.
VEHICLE
- Amount(s) applied (volume or weight with unit):
Not applicable
- Concentration (if solution):
Not applicable.
- Lot/batch no. (if required):
Notapplicable - Duration of treatment / exposure:
- 72 hours
- Observation period:
- 72 hours
- Number of animals:
- 6
- Details on study design:
- TEST SITE
- Area of exposure:
On the day of the test a suitable test site was selected on the back of each rabbit.
- % coverage:
Not given in study report.
- Type of wrap if used:
Test material was brought into contact with separated skin areas left of the midline of the back.
REMOVAL OF TEST SUBSTANCE
- Washing (if done):
Not reported
- Time after start of exposure:
72 hours.
SCORING SYSTEM:
The resulting skin reactions were evaluated by the method of Draize (J. Pharm. Exptl. Therap. 82 (1944) 377-390) 24, 48, 72 and 96 hours after application.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- other: erythema/edema
- Basis:
- animal: 8803
- Time point:
- other: Mean score at 24 and 72 hours
- Score:
- 2
- Max. score:
- 8
- Reversibility:
- no data
- Irritation parameter:
- other: erythema/edema
- Basis:
- animal: 8804
- Time point:
- other: Mean at 24 and 72 hours
- Score:
- 3
- Max. score:
- 8
- Reversibility:
- no data
- Irritation parameter:
- other: Erythema/edema
- Basis:
- animal: 8805
- Time point:
- other: mean at 24 and 72 hours
- Score:
- 3
- Max. score:
- 8
- Reversibility:
- no data
- Irritation parameter:
- other: erythema/edema
- Basis:
- animal: 8806
- Time point:
- other: mean of 24 and 72 hours
- Score:
- 2
- Max. score:
- 8
- Reversibility:
- no data
- Irritation parameter:
- other: erythema/edema
- Basis:
- animal: 8807
- Time point:
- other: mean at 24 and 72 hours
- Score:
- 3
- Max. score:
- 8
- Reversibility:
- no data
- Irritation parameter:
- other: erythema/edema
- Basis:
- animal: 8808
- Time point:
- other: Mean at 24 and 72 hours
- Score:
- 3
- Max. score:
- 8
- Reversibility:
- no data
- Irritant / corrosive response data:
- Individual and average skin irritation scores are given in table 1. The test material caused severe skin irritation. Its dermal effects generally consisted of focal haemorrhages, slight to distinct ischemia and incrustation, and very slight edema.
ANALOGUE APPROACH JUSTIFICATION:
- See attached “Justification for read-across” document for full details.
- In summary, important considerations for the use of read-across for skin irritation are: i) 3-(4-tert-butylphenyl)acrylaldehyde (the target chemical) has similar predicted physico-chemical properties to those predicted and experimentally determined for 3-(4-tert-butylphenyl)propionaldehyde (the source substance), ii) there are structural similarities between the two chemicals and iii) the OECD QSAR Toolbox indicates that the two substances are expected to have similar interactions with biological receptors.
The information reported in this summary is included to demonstrate comparability between the source (3-(4-tert-butylphenyl)propionaldehyde) and target (3-(4-tert-butylphenyl)acrylaldehyde) substance. - Other effects:
- None
Any other information on results incl. tables
Rabbit Number |
Intact Skin |
Rabbit Number |
Abraded Skin |
||
24 hours |
72 hours |
24 hours |
72 hours |
||
A B |
|
A B |
|
||
8803 |
4 - 1 |
2 |
8797 |
4 - 1 |
2 |
8804 |
4 - 1 |
3 |
8798 |
4 - 1 |
2 |
8805 |
4 - 1 |
3 |
8799 |
4 - 1 |
3 |
8806 |
4 - 1 |
2 |
8800 |
4 - 1 |
3 |
8807 |
4 - 1 |
3 |
8801 |
4 - 1 |
2 |
8808 |
4 - 1 |
3 |
8802 |
4 - 1 |
2 |
Average |
5.0 |
2.7 |
Average |
5.0 |
2.3 |
B = edema
The resulting skin reactions were evaluated by the method of Draize (J. Pharm. Exptl. Therap. 82 (1944) 377-390) 24, 48, 72 and 96 hours after application.
Applicant's summary and conclusion
- Interpretation of results:
- Category 2 (irritant)
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- On the basis of the present results it can be concluded that undiluted test material is a severe primary skin irritant.
- Executive summary:
The test material was examined in primary skin irritation using New Zealand White albino rabbits as the experimental animals.
Pure and undiluted test material caused severe skin irritation.
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.
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