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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable study report which meets basic scientific principles

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1964
Report date:
1964

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Animals were painted with 10% test substance. After 5 days reapplication was done with 1% test substance on untreated skin.
GLP compliance:
no
Type of study:
skin painting test
Justification for non-LLNA method:
another acceptable animal study was already available

Test material

Constituent 1
Chemical structure
Reference substance name:
3-(2-ethylhexyloxy)propylamine
EC Number:
226-420-6
EC Name:
3-(2-ethylhexyloxy)propylamine
Cas Number:
5397-31-9
Molecular formula:
C11H25NO
IUPAC Name:
3-[(2-ethylhexyl)oxy]propan-1-amine

In vivo test system

Test animals

Species:
guinea pig
Strain:
not specified
Sex:
male/female

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
epicutaneous, open
Vehicle:
other: aceton
Concentration / amount:
induction: 10%
challenge: 1%
Challengeopen allclose all
Route:
epicutaneous, open
Vehicle:
other: aceton
Concentration / amount:
induction: 10%
challenge: 1%
No. of animals per dose:
10 in test group
3 in control group
Details on study design:
MAIN STUDY
A. INDUCTION EXPOSURE
- No. of exposures: 10
- Exposure period: 10 days
- Site: left side
- Frequency of applications: first seven daily, three days no application than 3 further daily applications
- Concentrations: 10%

B. CHALLENGE EXPOSURE
- No. of exposures: 1
- Day(s) of challenge: day 19
- Exposure period: 1 day
- Site: right side
- Concentrations: 1%
- Evaluation (hr after challenge): 24 hours

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
1%
No. with + reactions:
2
Total no. in group:
10
Clinical observations:
one animal showed erythema score 1 and one animal showed erythema score 2
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 1%. No with. + reactions: 2.0. Total no. in groups: 10.0. Clinical observations: one animal showed erythema score 1 and one animal showed erythema score 2.
Reading:
1st reading
Hours after challenge:
24
Group:
negative control
Dose level:
1%
No. with + reactions:
0
Total no. in group:
3
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: negative control. Dose level: 1%. No with. + reactions: 0.0. Total no. in groups: 3.0.

Any other information on results incl. tables

After induction all animals showed necrosis at induction side.

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information