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EC number: 939-513-8 | 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
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- The study was performed between 30 July 2012 and 09 August 2012.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.2400 (Acute Eye Irritation)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Japanese Ministry of Agriculture, Forestry and Fisheries (JMAFF), Testing Guidelines for Toxicology Studies, 12 NohSan No. 8147, amended 10 December 2002
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Japanese Ministry of Health and Welfare, 1992
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- tetrasodium 4-(hydrogen phosphonatomethyl)-2-oxo-1,4,2λ⁵-oxazaphosphinan-2-olate hydrogen {[(hydrogen phosphonatomethyl)(2-hydroxyethyl)amino]methyl}phosphonate
- EC Number:
- 939-513-8
- Molecular formula:
- C4H12NNaO7P2, C4H11NNa2O7P2 and C4H10NNa3O7P2
- IUPAC Name:
- tetrasodium 4-(hydrogen phosphonatomethyl)-2-oxo-1,4,2λ⁵-oxazaphosphinan-2-olate hydrogen {[(hydrogen phosphonatomethyl)(2-hydroxyethyl)amino]methyl}phosphonate
- Test material form:
- other: white paste
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- Three male New Zealand White (Hsdlf:NZW) strain rabbits were supplied by Harlan Laboratories UK Ltd., Leicestershire, UK. At the start of the study the animals weighed 2.17 to 2.64 kg and were twelve to twenty weeks old. After an acclimatisation period of at least five days each animal was given a number unique within the study which was written with a black indelible marker-pen on the inner surface of the ear and on the cage label.
The animals were individually housed in suspended cages. Free access to mains drinking water and food (2930C Teklad Global Certified Rabbit diet) was allowed throughout the study. The diet and drinking water were considered not to contain any contaminant of a level that might have affected the purpose or integrity of the study.
The temperature and relative humidity were set to achieve limits of 17 to 23°C and 30 to 70% respectively. Any occasional deviations from these targets were considered not to have affected the purpose or integrity of the study. The rate of air exchange was at least fifteen changes per hour and the lighting was controlled by a time switch to give twelve hours continuous light (06:00 to 18:00) and twelve hours darkness.
The animals were provided with environmental enrichment items which were considered not to contain any contaminant of a level that might have affected the purpose or integrity of the study.
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- TEST MATERIAL
For the purpose of the study the test item was used as supplied.
A volume of 0.1 ml of the test item was placed into the conjunctival sac of the right eye. - Duration of treatment / exposure:
- Single application for 72 hour exposure.
- Observation period (in vivo):
- 72 hours
- Number of animals or in vitro replicates:
- 3
- Details on study design:
- MEASUREMENT OF PH:
The pH of the test item was determined prior to commencement of the study and found to be as follows:
10% w/w aqueous preparation of the test item: pH 4 immediately and after 10 minutes.
PROCEDURE:
Immediately before the start of the test, both eyes of the provisionally selected test rabbits were examined for evidence of ocular irritation or defect with the aid of a light source from a standard ophthalmoscope. Only animals free of ocular damage were used.
Initially, a single rabbit was treated. A volume of 0.1 ml of the test item was placed into the conjunctival sac of the right eye, formed by gently pulling the lower lid away from the eyeball. The upper and lower eyelids were held together for about one second immediately after treatment, to prevent loss of the test item, and then released. The left eye remained untreated and was used for control purposes. Immediately after administration of the test item, an assessment of the initial pain reaction was made according to the six point scale shown in Appendix 1 (see attached background material: Appendix 1- Initial Pain Reaction).
After consideration of the ocular responses produced in the first treated animal, two additional animals were treated.
SCORING SYSTEM:
Assessment of ocular damage/irritation was made approximately 1 hour and 24, 48 and 72 hours following treatment, according to the numerical Draize Scale for Scoring Ocular Irritation (see attached background material for Appendix 2 - Draize Scale for Scoring Ocular Irritation).
Any other ocular effects were also noted.
TOOL USED TO ASSESS SCORE: Examination of the eye was facilitated by the use of the light source from a standard ophthalmoscope.
Other:
Any clinical signs of toxicity, if present, were also recorded.
Individual bodyweights were recorded on Day 0 (the day of dosing) and at the end of the observation period.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Remarks:
- (Animal 72301)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Remarks:
- (Animal 72340)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Remarks:
- (Animal 72341)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Remarks:
- (Animal 72301)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Remarks:
- (Animal 72340)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Remarks:
- (Animal 72341)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- conjunctivae score
- Remarks:
- (redness)
- Basis:
- animal #1
- Remarks:
- (Animal 72301)
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hours
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- conjunctivae score
- Remarks:
- (redness)
- Basis:
- animal #2
- Remarks:
- (Animal 72340)
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 3
- Reversibility:
- fully reversible within: 48 hours
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- conjunctivae score
- Remarks:
- (redness)
- Basis:
- animal #3
- Remarks:
- (Animal 72341)
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 3
- Reversibility:
- fully reversible within: 48 hours
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Remarks:
- (Animal 72301)
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 hours
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Remarks:
- (Animal 72340)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible within: 24 hours
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Remarks:
- (Animal 72341)
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 hours
- Remarks on result:
- no indication of irritation
- Irritant / corrosive response data:
- Individual and group mean scores for ocular irritation are given in Table 1 and Table 2.
No corneal or iridial effects were noted during the study.
Moderate conjunctival irritation was noted in all treated eyes one hour after treatment. Minimal conjunctival irritation was noted in all treated eyes at the 24 Hour observation and in one treated eye at the 48 Hour observation.
Two treated eyes appeared normal at the 48 Hour observation and one treated eye appeared normal at the 72 Hour observation. - Other effects:
- Bodyweight:
Individual bodyweights and bodyweight changes are given in Table 3.
All animals showed expected gain in bodyweight during the study.
Any other information on results incl. tables
Table1 Individual Scores and Individual Total Scores for Ocular Irritation
Rabbit Number and Sex |
72301Male |
72340Male |
72341Male |
|||||||||
IPR= 2 |
IPR = 1 |
IPR = 2 |
||||||||||
Time After Treatment |
1 |
24 |
48 |
72 |
1 |
24 |
48 |
72 |
1 |
24 |
48 |
72 |
CORNEA |
|
|
|
|
|
|
|
|
|
|
|
|
E = Degree of Opacity |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
F = Area of Cornea Involved |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Score (E x F) x 5 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
IRIS |
|
|
|
|
|
|
|
|
|
|
|
|
D |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Score (D x 5) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
CONJUNCTIVAE |
|
|
|
|
|
|
|
|
|
|
|
|
A = Redness |
2 |
2 |
1 |
0 |
2 |
1 |
0 |
0 |
2 |
1 |
0 |
0 |
B = Chemosis |
2 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
C = Discharge |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
Score (A + B + C) x 2 |
10 |
6 |
2 |
0 |
8 |
2 |
0 |
0 |
8 |
4 |
0 |
0 |
Total Score |
10 |
6 |
2 |
0 |
8 |
2 |
0 |
0 |
8 |
4 |
0 |
0 |
IPR= Initial pain reaction
Table 2 Individual Total Scores and Group Mean Scores for Ocular Irritation
Rabbit Number and Sex |
Individual Total Scores At: |
|||
1 Hour |
24 Hours |
48 Hours |
72 Hours |
|
72301Male |
10 |
6 |
2 |
0 |
72340Male |
8 |
2 |
0 |
0 |
72341Male |
8 |
4 |
0 |
0 |
Group Total |
26 |
12 |
2 |
0 |
Group Mean Score |
8.7 |
4.0 |
0.7 |
0.0 |
Table 3 Individual Bodyweights and Bodyweight Changes
Rabbit Number |
Individual Bodyweight (kg) |
Bodyweight Change (kg) |
|
Day 0 |
Day 3 |
||
72301Male |
2.17 |
2.24 |
0.07 |
72340Male |
2.49 |
2.55 |
0.06 |
72341Male |
2.64 |
2.75 |
0.11 |
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The key in vivo eye irritation study for HEBMP-xNa, conducted according to OECD Test Guideline 405 and in compliance with GLP, concluded the test material to be not irritating to eyes.
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