Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
sensitisation data (humans)
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1971
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Test is performed according to guideline but pre-GLP. Information on substance identity and concentration of test substance is not reported. Report is acceptable as basic data.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1971
Report date:
1971

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Test guideline
Qualifier:
according to guideline
Guideline:
other: Maximization Test (JID; Vol. 47; No. 5; 393-409; 1966)
Deviations:
no
Principles of method if other than guideline:
not applicable
GLP compliance:
no
Remarks:
pre-GLP

Test material

Constituent 1
Reference substance name:
Tangerine oil
IUPAC Name:
Tangerine oil
Details on test material:
- Name of test material (as cited in study report): Tangerine oil
- Lot/batch No.: confidential

Method

Type of population:
general
Controls:
No data
Route of administration:
dermal

Results and discussion

Results of examinations:
SYMPTOMS
- No symptoms observed

NO. OF PERSONS WITH/OUT REACTIONS COMPARED TO STUDY POPULATION
- Number of subjects with positive reactions: 0

Any other information on results incl. tables

Reading
Hours after challenge
Group
Dose level
No. with + reactions
Total no. in group
Clinical observations
1st reading
48
test group
 
0
25
 
2nd reading
72
test group
 
0
25
 

Applicant's summary and conclusion

Conclusions:
In a human maximization test with Tangerine oil, no sensitisation was observed in human volunteers under the conditions of this test.
Executive summary:

The sensitising properties of tangerine oil were investigated in a human maximisation test. Twenthy-five healthy male inmate volunteers completed the experiment. For induction, the test material was applied under occlusion to the forearms of all subjects for 5 alternate day 48 -hour periods. SLS was used as pre-treatment. After a 10 -day rest period, challenge patches were applied under occlusion to fresh sites for 48 hours, also preceded by 1 hour application of SLS. The challenge sites were read on removal of the patch and 24 hours thereafter. None of the subjects showed sensitisation. Based on these results and according to the EU classification outlined in 1272/2008/EC and 67/548/EEC, the substance Tangerine oil would not classify as a sensitiser.