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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 (LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The results of the evaluation report published in this document have been peer-reviewed.

Data source

Reference
Reference Type:
publication
Title:
ICCVAM TEST METHOD EVALUATION REPORT. The Reduced Murine Local Lymph Node Assay: An Alternative Test Method Using Fewer Animals to Assess the Allergic Contact Dermatitis Potential of Chemicals and Products
Author:
Interagency Coordinating Committee on the Validation of Alternative Methods (ICCVAM)
Year:
2009
Bibliographic source:
NIH Publication Number 09-6439. Research Triangle Park, NC: National Institute of Environmental Health Sciences; online available at http://iccvam.niehs.nih.gov/docs/immunotox_docs/LLNA-LD/TMER.pdf

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
EU Method B.42 (Skin Sensitisation: Local Lymph Node Assay)
Deviations:
not specified
GLP compliance:
not specified
Type of study:
mouse local lymph node assay (LLNA)

Test material

Constituent 1
Chemical structure
Reference substance name:
Dimethyl carbonate
EC Number:
210-478-4
EC Name:
Dimethyl carbonate
Cas Number:
616-38-6
Molecular formula:
C3H6O3
IUPAC Name:
dimethyl carbonate

In vivo test system

Test animals

Species:
mouse
Strain:
other: CBA/Ca or CBA/J
Sex:
female

Study design: in vivo (LLNA)

Vehicle:
acetone/olive oil (4:1 v/v)
Concentration:
- 0.5%
- 5%
- 50%
No. of animals per dose:
minimum of four animals per dose

Results and discussion

In vivo (LLNA)

Resultsopen allclose all
Parameter:
SI
Remarks on result:
other: - Conc.(0.5%): SI = 0.64 - Conc.(5%): SI = 0.69 - Conc.(50%): SI = 1.71
Parameter:
other: disintegrations per minute (DPM)
Remarks on result:
other: no data

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information
Conclusions:
The test substance 'dimethyl carbonate' is not expected to cause skin sensitisation (= result of traditional LLNA).
Moreover a “reduced LLNA” (rLLNA), also referred to as the “cut-down” or “limit dose” LLNA was performed. The result of the rLLNA was in line with the result of the traditional LLNA: not sensitising.