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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study with GLP
Cross-referenceopen allclose all
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to other study

Data source

Reference
Reference Type:
review article or handbook
Title:
Unnamed
Year:
2000

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Principles of method if other than guideline:
There is no need to add in this field.
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
425-220-8
EC Name:
-
Cas Number:
5945-33-5
Molecular formula:
C39H34O8P2
IUPAC Name:
(1-methylethylidene)di-4,1-phenylenetetraphenyl diphosphate
Details on test material:
75 - 95% (typical 88%, verified by UV/visible spectrum, Infrared (IR) spectrum, Nuclear Magnetic Resonance (NMR), and Mass spectrum.)

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
Nothing to add in this field.

Test system

Type of coverage:
semiocclusive
Preparation of test site:
not specified
Vehicle:
unchanged (no vehicle)
Controls:
not specified
Amount / concentration applied:
0.5 mL
Duration of treatment / exposure:
4 hours
Observation period:
3 days
Number of animals:
3 (males)
Details on study design:
Nothing to add in this field.

Results and discussion

In vivo

Results
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
other: 1,24,48,72 hours
Score:
0
Max. score:
0
Reversibility:
no data
Remarks on result:
other: The test material was applied to a prepared site on the dorsal aspect of the animals by a patch held in place by tape
Irritant / corrosive response data:
No signs of irritation/corrosive were noted during the study.
Other effects:
no data

Any other information on results incl. tables

No signs of irritation/corrosive were noted during the study. The test substance produced a primary irritation index of 0.0 for erythema and oedema.

The test chemical was non-irritating to the skin of rabbits.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: expert judgment
Conclusions:
The test material was non-irritating to the skin of rabbits.
Executive summary:

According to OECD TG 404, the test chemical was considered as a non-irriating substance via acute dermal irritation/corrosion study in rabbits.