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EC number: 401-950-2 | CAS number: 31506-43-1 3-(DIMETHYLAMINO)PROPYL UREA; HST 2844
- 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
- Study period:
- 2000
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Version / remarks:
- This study was designed to comply with the standards set forth in OECD Guidelines For Testing Chemicals, Number 405, adopted February 24, 1987.
- GLP compliance:
- yes
Test material
- Reference substance name:
- 3-(dimethylamino)propylurea
- EC Number:
- 401-950-2
- EC Name:
- 3-(dimethylamino)propylurea
- Cas Number:
- 31506-43-1
- Molecular formula:
- C6H15N3O
- IUPAC Name:
- [3-(dimethylamino)propyl]urea
- Reference substance name:
- Oxydipropanol
- EC Number:
- 246-770-3
- EC Name:
- Oxydipropanol
- Cas Number:
- 25265-71-8
- Molecular formula:
- C6H14O3
- IUPAC Name:
- 1,1'-oxydipropan-1-ol
- Reference substance name:
- 1,3-bis[3-(dimethylamino)propyl]urea
- EC Number:
- 257-861-2
- EC Name:
- 1,3-bis[3-(dimethylamino)propyl]urea
- Cas Number:
- 52338-87-1
- Molecular formula:
- C11H26N4O
- IUPAC Name:
- 1,3-bis[3-(dimethylamino)propyl]urea
- Reference substance name:
- Urea
- EC Number:
- 200-315-5
- EC Name:
- Urea
- Cas Number:
- 57-13-6
- Molecular formula:
- CH4N2O
- IUPAC Name:
- urea
- Test material form:
- liquid
Constituent 1
Constituent 2
Constituent 3
Constituent 4
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- New Zealand White rabbits were received from Ace Animals, Boyertown, PA on 12/21/99 and quarantined for at least five days. Only animals in apparent good health were made available for study assignment. Prior to being selected for this study, both eyes of each animal were examined according to the Draize technique for any evidence of irritation or abnormalities of the cornea, iris and/or conjunctiva.
A Mini-Maglite flashlight equipped with a high intensity bulb was used to aid in the examination. Three rabbits (males), free from evidence of ocular irritation or abnormalities, were assigned to this study.
The animals were born the weeks of 10/10 through 10/24/99. The pretest body weight was 2.1 kg. The animals were identified by cage notation and a uniquely numbered metal eartag. The animals were housed llcage in suspended cages. Bedding was placed beneath the cages and changed at least three times week. Fresh Purina Rabbit Chow (Diet #5321) was provided daily. Water was available ad libitum. The animal room, reserved exclusively for rabbits on acute tests, was temperature controlled, had a 12 hour lightldark cycle and was kept clean and vermin free.
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- One eye of each rabbit was dosed. The contralateral eye sewed as a control. The test article (0.1 ml) was placed by syringe into the conjunctival sac which was formed by gently pulling the lower eyelid away from the eye. After instillation, the lids were held together for approximately one second to insure adequate distribution of the test article.
- Duration of treatment / exposure:
- Using a Mini-Maglite flashlight equipped with a high intensity bulb, the treated eye of each rabbit was examined for irritation of the cornea, iris and conjunctiva at 1, 24, 48, and 72 hours post dose and on day 7.
Ocular reactions were graded according to the numerical Draize technique. Additional signs were described. - Observation period (in vivo):
- 1, 24, 48, and 72 hours post dose and on day 7
- Number of animals or in vitro replicates:
- Three healthy New Zealand White rabbits (males)
- Details on study design:
- Three healthy New Zealand White rabbits (males), free from evidence of ocular initation and corneal abnormalities, were dosed with NE 1060. The test article (0.1 ml) was placed into the conjunctival sac of one eye of each rabbit. The eyes were examined and scored by the Draize technique at 1,24,48 and 72 hours post dose and on day 7. The primary eye irritation score for each rabbit, each day, was calculated. Body weights were recorded pretest
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- overall irritation score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- >= 65 - <= 85
- Max. score:
- 85
- Reversibility:
- not reversible
- Irritation parameter:
- overall irritation score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 63
- Max. score:
- 63
- Reversibility:
- not reversible
- Irritation parameter:
- overall irritation score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- >= 38 - <= 63
- Max. score:
- 63
- Reversibility:
- not reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- >= 40 - <= 60
- Max. score:
- 60
- Reversibility:
- not reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 40
- Max. score:
- 40
- Reversibility:
- not reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- >= 15 - <= 40
- Max. score:
- 40
- Reversibility:
- not reversible
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 5
- Max. score:
- 5
- Reversibility:
- not reversible
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 5
- Max. score:
- 5
- Reversibility:
- not reversible
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 5
- Max. score:
- 5
- Reversibility:
- not reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 4
- Max. score:
- 4
- Reversibility:
- not reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 4
- Max. score:
- 4
- Reversibility:
- not reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 4
- Max. score:
- 4
- Reversibility:
- not reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- >= 18 - <= 20
- Max. score:
- 20
- Reversibility:
- not reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 18
- Max. score:
- 18
- Reversibility:
- not reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 18
- Max. score:
- 18
- Reversibility:
- not reversible
- Irritant / corrosive response data:
- Corneal opacity, iritis and conjunctival irritation persisted through day 7.
Applicant's summary and conclusion
- Interpretation of results:
- Category 1 (irreversible effects on the eye) based on GHS criteria
- Conclusions:
- NE 1060 is corrosive
- Executive summary:
Corneal opacity, intis and conjunctival irritation persisted through day 7. One instance of soiling of the anogenital area was noted during the observation period.
Conclusion: NE 1060 is corrosive.
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