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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: secondary source

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2010

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)

Test material

Constituent 1
Chemical structure
Reference substance name:
2,6-diamino-1H-pyrimidin-4-one
EC Number:
200-254-4
EC Name:
2,6-diamino-1H-pyrimidin-4-one
Cas Number:
56-06-4
Molecular formula:
C4H6N4O
IUPAC Name:
2,6-diamino-1H-pyrimidin-4-one

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White

Test system

Vehicle:
water
Observation period (in vivo):
72h
Number of animals or in vitro replicates:
3
Details on study design:
Investigation with fluorescein was performed.

Results and discussion

In vivo

Results
Irritation parameter:
conjunctivae score
Basis:
other: all three animals
Time point:
other: 24, 48 and 72h
Score:
1
Max. score:
2
Reversibility:
fully reversible within: 48h

Any other information on results incl. tables

Mean Score (mean of 24, 48 and 72h) Maximum Value Maximum Duration of Any Effect Maximum Value at End of Observation Period
Findings Animal No.1  Animal No.2  Animal No.2
Conjunctiva: redness 1 1 1 2 48 h 0
Conjunctiva: chemosis 0 0.33 0.33 1 24 h 0
Conjunctiva:discharge** - - - -  not applicable
Corneal opacity 0 0 0 0  not applicable 0
Iris 0 0 0 0 not applicable 0

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU