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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Skin sensitisation

Currently viewing:

Administrative data

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EEC-Directive B.6 Maximization test
GLP compliance:
yes
Type of study:
guinea pig maximisation test
Justification for non-LLNA method:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
423-710-6
EC Name:
-
Cas Number:
113170-55-1
Molecular formula:
C12H12Mg3O18P2
IUPAC Name:
trimagnesium(2+) bis((2R)-2-[(1S)-1,2-dihydroxyethyl]-5-oxo-4-(phosphonatooxy)-2,5-dihydrofuran-3-olate)
Test material form:
solid: particulate/powder

In vivo test system

Test animals

Species:
guinea pig

Study design: in vivo (non-LLNA)

Induction
Concentration / amount:
Concentration of test material and vehicle used at induction:
Intradermal and epidermal induction: 25% in distilled water

Concentration of test material and vehicle used for each challenge:
First and second challenge:

50, 25, 10 and 0% in distilled water
Challenge
Concentration / amount:
Concentration of test material and vehicle used at induction:
Intradermal and epidermal induction: 25% in distilled water
Concentration of test material and vehicle used for each challenge:
First and second challenge:
50, 25, 10 and 0% in distilled water

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Group:
negative control
Remarks on result:
other: not specified
Group:
test chemical
Remarks on result:
other: not specified
Group:
positive control
Remarks on result:
other: not specified

Any other information on results incl. tables

Signs of irritation during induction: After the intradermal induction no abnormalities were seen at the treated areas.

After the epidermal induction slight to well defined erythema was observed in 7/10 experimental animals. The control animals showed no erythema.

In 2 experimental and 1 control animal very small scabs were observed.

Evidence of sensitisation of each challenge concentration: The effects seen at the 25% concentration in the experimental and control animals was considered to be induced by pulling out the hairs while removing the test substance after exposure and not by a allergic reaction.

Therefore, the results lead to a sensitization rate of 0%.

Other observations: no findings

Applicant's summary and conclusion

Interpretation of results:
other: not classified