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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 246-438-8 | CAS number: 24731-73-5
- 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
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Well performed GLP study according to recent OECD TG.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Version / remarks:
- April 24, 2002
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
- Version / remarks:
- April 29. 2004
- Deviations:
- not specified
- GLP compliance:
- yes
Test material
- Reference substance name:
- N,N'-1,4-phenylenebis[3-oxobutyramide]
- EC Number:
- 246-438-8
- EC Name:
- N,N'-1,4-phenylenebis[3-oxobutyramide]
- Cas Number:
- 24731-73-5
- Molecular formula:
- C14H16N2O4
- IUPAC Name:
- 3-oxo-N-[4-(3-oxobutanamido)phenyl]butanamide
- Details on test material:
- - Name of test material (as cited in study report): Diacetessig - p - phenylendiamid
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- -Test system: Young Adult New Zealand White Rabbit, SPF
- Rationale: Recognized by the international guidelines as the recommended test system.
- Source: Charles River Deutschland GmbH, Stolzenseeweg 32-36, D-88353 Kisslegg / Germany
- Number of animals per test: 3 (Animals of both sexes were used)
- Age at treatment: 13 weeks (male) and 13 - 16 weeks (females)
- Identification: By unique cage number and corresponding ear number.
- Acclimatization: Only animals without any visual signs of illness were used for the study.
- Allocation: Male No. 43 and Female Nos. 44 and 45
- Room number: 0221 / RCC Ltd, Füllinsdorf
- Conditions: Standard Laboratory Conditions
- Air-conditioned with ranges for room temperature 17-23 °C, relative humidity 30-70 % and approx. 10-15 air changes per hour.
- Room temperature and humidity were monitored continuously and values outside of these ranges may have occasionally occurred, usually following room cleaning. These transient variations are considered not to have any influence on the study and, therefore, these data are not reported but are retained at RCC.
- The animals were provided with an automatically controlled light cycle of 12 hours light and 12 hours dark. Music was played during the daytime light period.
- Accommodation: Individually in stainless steel cages equipped with feed hoppers and drinking water bowls. Wood blocks (RCC Ltd, Füllinsdorf) and haysticks 4642 (batch no. 35/05, Provimi Kliba AG) were provided for gnawing.
- Diet: Pelleted standard Provimi Kliba 3418 rabbit maintenance diet ad libitum (batch no. 34/05) provided by Provimi Kliba AG, CH-4303 Kaiseraugst. Results of analysis for contami¬nants are archived at RCC Ltd.
- Water: Community tap water from Füllinsdorf, ad libitum. Results of bacteriological, chemical and contaminant analyses are archived at RCC Ltd.
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- other: The right eye remained untreated and served as the reference control.
- Amount / concentration applied:
- 0.1 g (per animal) of pulverized test item was weighed and applied undiluted (unchanged, no vehicle).
- Duration of treatment / exposure:
- single treatment, the treated eyes were not rinsed after instillation
- Observation period (in vivo):
- Examinations were performed at 1 hr, 24 hrs, 48 hrs and 72 hrs after instillation or the test item.
- Number of animals or in vitro replicates:
- 3
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- animal: #43
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no signs of irritation (cornea) at any time
- Irritation parameter:
- iris score
- Basis:
- animal: #43
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- other: no signs of irritation (iris) at any time
- Irritation parameter:
- conjunctivae score
- Basis:
- animal: #43
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0.67
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hrs
- Irritation parameter:
- chemosis score
- Basis:
- animal: #43
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: initial slight reactions were fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal: #44
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no signs of irritation (cornea) at any time
- Irritation parameter:
- iris score
- Basis:
- animal: #44
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- other: no signs of irritation (iris) at any time
- Irritation parameter:
- conjunctivae score
- Basis:
- animal: #44
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0.67
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hrs
- Irritation parameter:
- chemosis score
- Basis:
- animal: #44
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: initial slight reactions were fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal: #45
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no signs of irritation (cornea) at any time
- Irritation parameter:
- iris score
- Basis:
- animal: #45
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- other: no signs of irritation (iris) at any time
- Irritation parameter:
- conjunctivae score
- Basis:
- animal: #45
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- other: initial slight reactions were fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal: #45
- Time point:
- other: mean of 24 hrs, 48 hrs, 72 hrs
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: initial slight reactions were fully reversible
- Irritant / corrosive response data:
IRRITATION
The mean score was calculated across 3 scoring times (24, 48 and 72 hours after instillation) for each animal for corneal opacity, iris, redness and chemosis of the conjunctivae, separately. The individual mean scores for corneal opacity and iris were 0.00 for all three animals. The individual mean scores for the conjunctivae were 0.67, 0.67 and 0.00 for reddening and 0.00 for chemosis for all three animals, respectively.
No abnormal findings were observed in the cornea or iris of any animal at any of the measurement intervals.
Moderate reddening of the conjunctivae was noted in all animals at the 1-hour reading and slight reddening persisted in two animals until the 48-hour examination.
Slight swelling (chemosis) of the conjunctivae was observed in all animals at the 1-hour reading.
Moderate reddening of the sclerae was present in all animals at the 1-hour reading. Slight ocular discharge was observed in all animals at the 1-hour reading.
No abnormal findings were observed in the treated eye of any animal 72 hours after treatment, the end of the observation period for all animals.
COLORATION
Gray remnants of the test item were observed in the eye or conjunctival sac of all animals one hour after treatment.
CORROSION
No corrosion of the cornea was observed at any of the reading times.- Other effects:
- VIABILITY/MORTALITY AND CLINICAL SIGNS
No clinical signs of systemic toxicity were observed in the animals during the study and no mortality occurred.
Any other information on results incl. tables
BODY WEIGHTS
The body weights of all rabbits were considered to be within the normal range of variability.
Body weight in grams |
||||
Animal |
Sex |
First Day of |
Day of |
Last Day of Observation |
43 |
male |
2425 |
2571 |
2656 |
44 |
female |
3067 |
3189 |
3268 |
45 |
female |
2968 |
3093 |
3236 |
Applicant's summary and conclusion
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: expert judgment
- Conclusions:
- Based upon the referred classification (Commission Directive 200 1/59/EC of August 06, 2001), Diacetessig - p - phenylendiamid is considered to be “not irritating” to the rabbit eye.
- Executive summary:
The primary eye irritation potential of Diacetessig - p - phenylendiamid was investigated according to OECD test guideline no. 405. The test item was applied by instillation of 0.1 g into the left eye of each of three young adult New Zealand White rabbits. Scoring of irritation effects was performed approximately 1, 24, 48 and 72 hours after test item instillation.
The mean score was calculated across 3 scoring times (24, 48 and 72 hours after instillation) for each animal for corneal opacity, iris, redness and chemosis of the conjunctivae, separately. The individual mean scores for corneal opacity and iris were 0.00 for all three animals. The individual mean scores for the conjunctivae were 0.67, 0.67 and 0.00 for reddening and 0.00 for chemosis for all three animals, respectively.
The instillation of Diacetessig - p - phenylendiamid into the eye resulted in mild, early-onset and transient ocular changes, such as reddening of the conjunctivae and sclerae, discharge and chemosis. These effects were reversible and were no longer evident 72 hours after treatment, the end of the observation period for all animals. No abnormal findings were observed in the cornea or iris of any animal at any of the examinations. No corrosion was observed at any of the measuring intervals. No staining of the treated eyes by the test itemand no clinical signs were observed.
Thus, the test item did not induce significant or irreversible damage to the rabbit eye.
Based upon the referred classification criteria (Commission Directive 2001/59/EC ofAugust 06, 2001), Diacetessig - p - phenylendiamid is considered to be “not irritating” to the rabbit eye.
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.