Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 (LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Version / remarks:
Enhanced method in relation to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Deviations:
not specified
GLP compliance:
no
Remarks:
(study performed according to SOP in a laboratory that conforms to GLP but report not audited by the QAU)
Type of study:
mouse local lymph node assay (LLNA)

Test material

Constituent 1
Chemical structure
Reference substance name:
Oxycodone
EC Number:
200-960-2
EC Name:
Oxycodone
Cas Number:
76-42-6
Molecular formula:
C18H21NO4
IUPAC Name:
(1S,5R,13R,17S)-17-hydroxy-10-methoxy-4-methyl-12-oxa-4-azapentacyclo[9.6.1.0^{1,13}.0^{5,17}.0^{7,18}]octadeca-7(18),8,10-trien-14-one
impurity 1
Reference substance name:
Unknown impurity
IUPAC Name:
Unknown impurity
Test material form:
solid

In vivo test system

Test animals

Species:
mouse
Strain:
Balb/c
Sex:
female

Study design: in vivo (LLNA)

Vehicle:
other: 1,2 propanediol
No. of animals per dose:
4
Details on study design:
Lymphocyte subpopulations of the draining lymph nodes are studied by flow cytometry. Evaluation is based on the ratio of T cells to B cells (CD3:CD19). This ratio is an indicator of the B cell proliferation induced by the treatment of mice with contact allergens. If the T cells to B cells ratio is below 4, the tested compound is considered as a sensitizer.
Positive control substance(s):
other: DNCB

Results and discussion

In vivo (LLNA)

Results
Key result
Parameter:
other: Ratio CD3/CD19
Value:
5.6

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
Oxycodone is not a sensitizer based on the described test.