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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Skin sensitisation

Currently viewing:

Administrative data

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 406 (Skin Sensitisation)
Principles of method if other than guideline:
The study used the footpad method, as mentioned in the OECD 406 guidelines (1981)
GLP compliance:
no
Remarks:
However was subject to Quality Assurance
Type of study:
other: Foodpad method
Justification for non-LLNA method:
Study available from 1989, LLNA method not yet accepted guideline

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-p-phenylenedioxydiethanol
EC Number:
203-197-3
EC Name:
2,2'-p-phenylenedioxydiethanol
Cas Number:
104-38-1
Molecular formula:
C10H14O4
IUPAC Name:
2,2'-[1,4-phenylenebis(oxy)]diethanol

In vivo test system

Test animals

Species:
guinea pig
Strain:
other: Cr1:(HA)BR Hartley
Sex:
female

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
intradermal
Vehicle:
other: Acetone/dioxane/guinea pig fat
Concentration / amount:
Induction: 1% w/v
Challenge: 10% w/v
Challengeopen allclose all
Route:
epicutaneous, open
Vehicle:
other: Acetone/dioxane/guinea pig fat
Concentration / amount:
Induction: 1% w/v
Challenge: 10% w/v
No. of animals per dose:
10 females
Challenge controls:
10 females
Positive control substance(s):
not specified

Results and discussion

Positive control results:
Not applicable

In vivo (non-LLNA)

Resultsopen allclose all
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
10% w/v
No. with + reactions:
0
Total no. in group:
10
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 10% w/v. No with. + reactions: 0.0. Total no. in groups: 10.0.
Reading:
1st reading
Hours after challenge:
24
Group:
negative control
Dose level:
Not applicable
No. with + reactions:
0
Total no. in group:
10
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: negative control. Dose level: Not applicable. No with. + reactions: 0.0. Total no. in groups: 10.0.

Any other information on results incl. tables

No reaction was observed at challenge in any animal.

Applicant's summary and conclusion

Interpretation of results:
other: CLP criteria (Reg 1272/2008) are not met
Conclusions:
HQEE was not a skin sensitiser in this assay