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Toxicological information

Eye irritation

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Administrative data

Endpoint:
eye irritation, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 1983-08-18 till 1983-08-29
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study without GLP.
Justification for type of information:
QSAR and in-vitro methods not available at that time.
QSAR not applicable for organic salt compound MPAAU.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1983
Report date:
1983

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Version / remarks:
May 12, 1981
Deviations:
no
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Methylphosphonic acid, compound with amidinourea (1:1)
EC Number:
282-758-4
EC Name:
Methylphosphonic acid, compound with amidinourea (1:1)
Cas Number:
84402-58-4
Molecular formula:
C2H6N4O.CH5O3P
IUPAC Name:
Phosphonic acid, P-methyl-, compd. with N-(aminoiminomethyl)urea (1:1)
Details on test material:
Technical product

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White

Test system

Vehicle:
unchanged (no vehicle)
Controls:
other: the left eye of the test animals remained untreated
Amount / concentration applied:
0.1 ml of the test item was placed into the conjunctival sac of the right eye of each animal.
Number of animals or in vitro replicates:
3 animals

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 1h, 24h, 48h, 72h, 7 days
Score:
0
Max. score:
0
Reversibility:
other: no effect
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 1h, 24h, 48h, 72h, 7 days
Score:
0
Max. score:
0
Reversibility:
other: no effect
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
other: 1 h
Score:
1
Max. score:
1
Reversibility:
fully reversible within: 24 h
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: 1 h
Score:
1
Max. score:
1
Reversibility:
fully reversible within: 24 h
Irritant / corrosive response data:
not irritating
Other effects:
The body weight in 2 animals was decreased during the test period.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The test item is non irritant and not corrosive when applied to the rabbit eye mucosa.