Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 478-950-4 | 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://chesar.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 20-30 April 2006
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- GLP study conducted according to OECD Guideline 405 with deviations: age at study initiation, feeding conditions not reported. These deviations do not affect the quality of the study and are not considered to be relevant.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
- Report date:
- 2006
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Version / remarks:
- 24 April 2002.
- Deviations:
- yes
- Remarks:
- age at study initiation, feeding conditions not reported
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
- Version / remarks:
- Directive 2004/73/EC.
- Deviations:
- yes
- Remarks:
- age at study initiation, feeding conditions not reported
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Inspected on 2005-10-03 / Signed on 2005-12-13.
Test material
- Reference substance name:
- (5R)-5-propyloxan-2-one
- Molecular formula:
- C8 H14 O2
- IUPAC Name:
- (5R)-5-propyloxan-2-one
- Reference substance name:
- (5S)-5-propyloxan-2-one
- Molecular formula:
- C8 H14 O2
- IUPAC Name:
- (5S)-5-propyloxan-2-one
- Test material form:
- liquid
- Details on test material:
- - Physical state: Colourless liquid
- Storage condition of test material: Room temperature
Constituent 1
Constituent 2
- Specific details on test material used for the study:
- - Test item was considered at 100% for the study.
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Elevage de Gérome, Quartier Labaste – F40260 Linxe
- Weight at study initiation: 2.34-2.61 kg
- Housing: Each animal was kept in an individual box installed in conventional air conditioned animal husbanding.
- Diet: No data
- Water: No data
- Acclimation period: 5 days
ENVIRONMENTAL CONDITIONS
- Temperature: 19-23 °C
- Humidity: 38-61 %
IN-LIFE DATES: 20-30 April 2006
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- other: untreated eye serving as control
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 mL
- Concentration (if solution): Undiluted - Duration of treatment / exposure:
- No washing was done
- Observation period (in vivo):
- Ocular examinations were performed on both right and left eyes 1, 24, 48 and 72 h & Days 4, 5 and 6 following treatment, according to a numerical evaluation.
- Number of animals or in vitro replicates:
- 3 males
- Details on study design:
- TREATMENT
A volume of 0.1 mL of the pure test item was instilled into the conjunctival sac of one eye, the other eye remained untreated serving as control. Initially, a single animal was treated. After consideration of the ocular responses produced in the first treated animal, two additional animals were treated.
REMOVAL OF TEST SUBSTANCE
- Washing: No
SCORING SYSTEM: According to OECD guideline 405
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 0.7
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 h
- Remarks on result:
- probability of weak irritation
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- other: not applicable
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 1.3
- Max. score:
- 3
- Reversibility:
- fully reversible within: 5 days
- Remarks on result:
- probability of weak irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 h
- Remarks on result:
- probability of weak irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: not applicable
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- other: not applicable
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 h
- Remarks on result:
- probability of weak irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 h
- Remarks on result:
- probability of weak irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 1.7
- Max. score:
- 4
- Reversibility:
- fully reversible within: 6 days
- Remarks on result:
- probability of mild irritation
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- other: not applicable
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #3
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 1.7
- Max. score:
- 3
- Reversibility:
- fully reversible within: 4 days
- Remarks on result:
- probability of weak irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Remarks:
- mean individual score
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 h
- Remarks on result:
- probability of weak irritation
- Irritant / corrosive response data:
- The ocular reactions observed during the study have been moderate, and totally reversible in the three animals:
- at the conjunctivae level: a moderate redness, noted 1 hour after the test item instillation and totally reversible between the 4th and the 6th day of the test, associated with a moderate chemosis, noted 1 hour after the test item instillation and totally reversible between the 3rd and the 4th day of the test;
- at the corneal level: a moderate opacity, registered 24 hours after the test item instillation in two animals and totally reversible between the 3rd and the 7th day of the test. - Other effects:
- None
Any other information on results incl. tables
Table 7.3.2/1: Individual and mean scores of conjunctivae, iris and cornea
Time / Animal
|
Cornea
|
Iris
|
Conjunctivae
|
|||||||||
redness
|
chemosis
|
|||||||||||
1 |
2 |
3 |
1 |
2 |
3 |
1 |
2 |
3 |
1 |
2 |
3 |
|
1 h |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
2 |
2 |
2 |
2 |
2 |
24 h |
2 |
0 |
2 |
0 |
0 |
0 |
2 |
2 |
2 |
2 |
1 |
1 |
48 h |
0 |
0 |
2 |
0 |
0 |
0 |
1 |
1 |
2 |
1 |
0 |
0 |
72 h |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
0 |
0 |
D4 |
0 |
- |
1 |
0 |
- |
0 |
1 |
- |
0 |
0 |
- |
0 |
D5 |
0 |
- |
1 |
0 |
- |
0 |
0 |
- |
0 |
0 |
- |
0 |
D6 |
- |
- |
0 |
- |
- |
0 |
- |
- |
0 |
- |
- |
0 |
Total 24/48/72 h |
2 |
0 |
5 |
0 |
0 |
0 |
4 |
3 |
5 |
3 |
1 |
1 |
Mean 24/48/72 h |
0.7 |
0.0 |
1.7 |
0.0 |
0.0 |
0.0 |
1.3 |
1.0 |
1.7 |
1.0 |
0.3 |
0.3 |
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Under the test conditions, the test substance is not classified as irritating to eyes according to the criteria of the Regulation EC No. 1272/2008 (CLP) and of the GHS.
- Executive summary:
In an eye irritation study conducted according to OECD 405 Guideline and in compliance with GLP, test substance was instilled as supplied, into the eye of 3 New Zealand rabbits at the dose of 0.1 mL, the other eye remained untreated serving as control. The lids were then gently held together for about one second in order to prevent loss of the test substance. The eyes were examined and the changes were observed at 1, 24, 48 and 72 h and 4, 5 and 6 days after treatment and graded according to the Draize method.
The ocular reactions observed during the study have been moderate, and totally reversible in the three animals:
- at the conjunctivae level: a moderate redness, noted 1 hour after the test item instillation and totally reversible between the 4th and the 6th day of the test, associated with a moderate chemosis, noted 1 hour after the test item instillation and totally reversible between the 3rd and the 4th day of the test;
- at the corneal level: a moderate opacity, registered 24 hours after the test item instillation in two animals and totally reversible between the 3rd and the 7th day of the test.
Mean individual scores at 24, 48 and 72 h after exposure for the 3 animals were 0.7, 0.0, 1.7 for cornea score; 0.0, 0.0, 0.0 for iris score; 1.3, 1.0, 1.7 for conjunctivae score and 1.0, 0.3, 0.3 for chemosis score.
Under the test conditions, test substance is not classified as irritating to eyes according to the criteria of the Regulation EC No. 1272/2008 (CLP) and of the GHS.
This study is considered as acceptable and satisfies the requirement for eye irritation endpoint.
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.
![ECHA](/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/echa_logo.png)