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EC number: 474-870-9 | CAS number: -
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- Irritation / corrosion
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Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 20 April 2007 to 27 April 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- -
- EC Number:
- 474-870-9
- EC Name:
- -
- Cas Number:
- 80156-97-4
- Molecular formula:
- Hill formula: C28H20ClN9Na4O16S5 CAS formula: C28H24ClN9O16S5.4Na
- IUPAC Name:
- tetrasodium 7-[(1E)-2-[2-(carbamoylamino)-4-{[4-chloro-6-({4-[2-(sulfonatooxy)ethanesulfonyl]phenyl}amino)-1,3,5-triazin-2-yl]amino}phenyl]diazen-1-yl]naphthalene-1,3,6-trisulfonate
- Test material form:
- solid: particulate/powder
- Details on test material:
- Reactive Yellow 176 Ester
Reactive Yellow 176 Sulfato
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- Species: Rabbit
Strain: New Zealand White rabbits
Source: TETRABBIT Kft., HUNGARY
Justification of strain: The New Zealand White rabbit is one of the standard species of acute irritation toxicity studies.
Animal health: Only animals in acceptable health condition were used for the test. Both eyes of each animal provisionally selected for testing were examined 24 hours prior to the start of study. Animals showing eye irritation, ocular defects or pre-existing corneal injury were not used.
Number of animals: 3 animals
Age of animals at arrivals: 10 weeks old, adult albino rabbit
Sex: male
Body weight range:
at the beginning of the study: 3378-3482 g
at the end of the study: 3555-3595 g
Date of receipt: 27 March 2007
Acclimatisation time: 24 days
Animal identification: The individual identification was performed by numbered ear tag. The cages were marked with individual identity cards with information about study code, sex, dose group, cage number and individual animal number.
Number of animal room: 618
Housing: Animals were housed individually in metal cages.
Lighting periods: 12 hours daily, from 6.00 a.m. to 6.00 p.m.
Temperature: 20 ± 3 °C
Relative humidity: 30-70 %
Food and Feeding: Animals received PURINA Base – Lap gr. diet for rabbit produced by AGRIBRANDS Europe Hungary PLC, H-5300 Karcag, Madarasi road, Hungary, ad libitum.
Water Supply: Animals will receive as tap water from automatic self- service water system ad libitum.
Quality Control of Water: The drinking water is routinely analysed and is considered not to contain any contaminants that could reasonably be expected to affect the purpose or integrity of the study.
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- 0.1 g
- Duration of treatment / exposure:
- The eyes of the test animals were not washed out after the application of test item.
- Observation period (in vivo):
- The eyes were examined at 1, 24, 48, 72 hours then one week after the treatment.
- Number of animals or in vitro replicates:
- 3
- Details on study design:
- The eyes of the test animals were not washed out after the application of test item.
The eye irritation scores were evaluated according to the scoring system by Draize.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Remarks:
- 3 animals
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- iris score
- Basis:
- mean
- Remarks:
- all animals
- 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:
- mean value
- Time point:
- 24/48/72 h
- Score:
- 1.33
- Max. score:
- 3
- Reversibility:
- fully reversible within: 7 days
- Remarks on result:
- probability of weak irritation
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- animal #2
- Remarks:
- mean value
- Time point:
- 24/48/72 h
- Score:
- 0.66
- Max. score:
- 3
- Reversibility:
- fully reversible within: 7 days
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- animal #3
- Remarks:
- mean value
- Time point:
- 24/48/72 h
- Score:
- 1.33
- Max. score:
- 3
- Reversibility:
- fully reversible within: 7 days
- Remarks on result:
- probability of weak irritation
- Irritation parameter:
- chemosis score
- Basis:
- mean
- Remarks:
- 3 animals
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritant / corrosive response data:
- The eyes were examined at 1, 24, 48, 72 hours then 1 week after the application.
One hour after treatment the vessels were diffuse and the individual vessels were not easily discernible (score 2), were found in all animals. In animal No.: 7171 the discharge with moistening of the lids and hairs, on considerable area around the eye (score 3) in other animal (No.: 7185) the discharge with moistening of the lids and hairs just adjacent to lids (score 2) occurred and in animal No.: 7159 the amount of discharge was greater than normal (score 1).
Chemosis was not observable during the study.
There were no effects observed in the cornea and iris during the study period.
24 hours after treatment some hyperaemic blood vessels (score 1) were observed in animal No.: 7159. In two cases (No.: 7185, 7171) the vessels were more diffuse (score 2).
Discharge alterations were not found at this time.
48 hours after treatment some blood vessels hyperaemic (score 1) were found in all animals.
72 hours after treatment in two animals (7185, 7171) the scores of the redness did not change compared to the previous observation. The animal No.: 7159 became fully symptom-free by this time.
1 week after treatment the study was terminated, since no primary irritation symptoms occurred.
During the study the control eyes of animals were symptom-free.
General state and the behaviour of animals were normal throughout the study period.
There were no notable body weight changes during the contact and observation period.
Any other information on results incl. tables
MEAN VALUES OF EYE IRRITATION SCORES FOR EU CLASSIFICATION
(24, 48, 72 hour reading)
Animal Number |
Sex |
Cornea Opacity |
Iris |
Conjunctivae |
||
Redness |
Chemosis |
Discharge |
||||
7185 |
Male |
0.00 |
0.00 |
1.33 |
0.00 |
0.00 |
7159 |
Male |
0.00 |
0.00 |
0.66 |
0.00 |
0.00 |
7171 |
Male |
0.00 |
0.00 |
1.33 |
0.00 |
0.00 |
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- In conclusion, test item Gelb Sulfato applied to the rabbits' eye mucosa, caused temporary slight conjunctival reddening, which was fully reversible within one week. No other adverse effects were noted.
Consequently, the test substance is not an eye irritant. - Executive summary:
The acute eye irritation study of the test item Gelb Sulfato was performed in New Zealand White rabbits. The irritation effect of the test item was evaluated according to the Draize method.
The study was performed in accordance with the study plan, the OECD Guideline for Testing of Chemicals No. 405, Directive 2004/73/EEC B.5 and the Principles of Good Laboratory Practice (GLP) and is reported with a GLP certificate. The test item was placed into the conjunctival sac of left eye of each animal. The untreated right eye served as control. 0.1 g of the test item was used for the study in pure state, as a single dose. The eyes of the test animals were not washed out after the application of test item. The eyes were examined at 1, 24, 48, 72 hours then one week after the application.
One hour after the single application of test item Gelb Sulfato into the eye of the rabbits moderate redness and slightly to severely increased discharge were observed in the eye of the test animals. There were no effects observed in the cornea, iris and conjunctival chemosis during the study period. 72 hour after the application in two cases slight redness were found, one animal became fully symptom-free by this time. 1 week after treatment the study was terminated, since no primary irritation symptoms occurred.
During the study the control eyes of animals were symptom-free. General state and the behaviour of animals were normal throughout the study period.
There were no notable body weight changes during the contact and observation period.
The animals’ individual mean scores (considering readings at 24, 48 and 72 hours after the treatment) were as follows:
cornea opacity : 0.00, 0.00, 0.00
iris : 0.00, 0.00, 0.00
redness : 1.33, 0.66, 1.33
chemosis : 0.00, 0.00, 0.00
discharge : 0.00, 0.00, 0.00
In conclusion, test item Gelb Sulfato applied to the rabbits' eye mucosa, caused slight to moderate conjunctival irritant effects, which were fully reversible within one week.
According to the EC criteria for classification and labelling requirements for dangerous substances and preparations, the test item does not have to be classified and has no obligatory labelling requirement for eye 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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