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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: OECD guideline study, no GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report date:
1984

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
no
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1,1-dimethoxytrimethylamine
EC Number:
225-063-3
EC Name:
1,1-dimethoxytrimethylamine
Cas Number:
4637-24-5
Molecular formula:
C5H13NO2
IUPAC Name:
1,1-dimethoxy-N,N-dimethylmethanamine
Details on test material:
IUCLID4 Test substance: other TS

TS-Freetext:
Dimethylformamid-dimethylacetal, no further data

Test animals / tissue source

Species:
rabbit
Strain:
Vienna White

Test system

Vehicle:
unchanged (no vehicle)
Controls:
no
Duration of treatment / exposure:
single application to the conjunctival sac of the right eyelid
Observation period (in vivo):
8 days
Number of animals or in vitro replicates:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 24, 48, and 72 hrs
Score:
0.9
Max. score:
1
Reversibility:
not fully reversible within: 8 days
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 24, 48, and 72 hrs
Score:
0
Max. score:
0
Reversibility:
fully reversible
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
other: 24, 48, and 72 hrs
Score:
2
Max. score:
2
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: 24, 48, and 72 hrs
Score:
1
Max. score:
2
Reversibility:
fully reversible

Applicant's summary and conclusion

Conclusions:
The test item causes irreversible damage to eyes in rabbits.
Executive summary:

The test substance causes irreversible damage to the eyes of rabbits.