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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
Deviations:
not specified
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide
EC Number:
423-340-5
EC Name:
Phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide
Cas Number:
162881-26-7
Molecular formula:
C26H27O3P
IUPAC Name:
[phenyl(2,4,6-trimethylbenzoyl)phosphoryl](2,4,6-trimethylphenyl)methanone

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
water
Controls:
no
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
4 hours
Observation period:
72 hours
Number of animals:
3 males

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 24
Score:
0
Max. score:
0
Reversibility:
other: not applicable
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 48
Score:
0
Max. score:
0
Reversibility:
other: not applicable
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 72
Score:
0
Max. score:
0
Reversibility:
other: not applicable
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 24
Score:
0
Max. score:
0
Reversibility:
other: not applicable
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 48
Score:
0
Max. score:
0
Reversibility:
other: not applicable
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 72
Score:
0
Max. score:
0
Reversibility:
other: not applicable

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The test substance was not irritationg to the skin.