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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: No data on followed guidelines, no data on the test substance. This study can be used as supportive data.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1985
Report date:
1985

Materials and methods

Type of sensitisation studied:
skin
Study type:
other: clinical case study
Test guideline
Qualifier:
no guideline followed
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Diglycerin
IUPAC Name:
Diglycerin
Details on test material:
- Name of test material (as cited in study report): Diglycerin, highly concentrated
- Substance type: no data
- Analytical purity: no data
- Lot/batch No.: no data
- Expiration date of the lot/batch: no data
- Stability under test conditions: no data
- Storage condition of test material: no data

Method

Type of population:
general
Ethical approval:
not specified
Subjects:
- Number of subjects exposed: 50
- Sex: males and females
- Age: 13-76
- Race: unspecified
- Demographic information: no data
- Other: know diseases: healthy 38, 7 allergic, 5 acne
Route of administration:
dermal
Details on study design:
TYPE OF TEST(S) USED: patch test (epicutaneous test)

ADMINISTRATION
- Type of application: not reported
- Description of patch: commercial test plaster
- Vehicle / solvent: none
- Concentrations: 50 % in water
- Volume applied: no data
- Testing/scoring schedule: degree of skin irritation was examined 24, 48 and 72 hours after application
- Removal of test substance: after 24 hours the plaster was removed
- test area: underarm or back

Results and discussion

Results of examinations:

RESULT OF CASE REPORT:
- Number of subjects with negative reactions: all but one
- Number of subjects with irritating reactions: one showed weak or uncertain erythema at 24 hours only

Applicant's summary and conclusion

Conclusions:
The epidermal test was used to assess primary skin irritation caused by Diglycerin in 50 volunteers. Test substance was applied to the clinically intact skin. The patch was removed after 24 hours and the test area was evaluated. Evaluations were repeated after 48 and 72 hours. After 24 hours only one uncertain reaction occurred which cannot be interpreted as a sign of intolerance of the test substance to the skin.