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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 (LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
GLP compliance:
yes
Type of study:
mouse local lymph node assay (LLNA)

Test material

Constituent 1
Chemical structure
Reference substance name:
Silicic acid (H4SiO4), zinc salt (1:2), manganese-doped
EC Number:
271-896-0
EC Name:
Silicic acid (H4SiO4), zinc salt (1:2), manganese-doped
Cas Number:
68611-47-2
Molecular formula:
Zn2SiO4:Mn
IUPAC Name:
Silicic Acid (H4SiO4), Zinc Salt (1: 2), Manganese-Doped

In vivo test system

Test animals

Species:
mouse
Strain:
CBA:J
Sex:
female

Study design: in vivo (LLNA)

Vehicle:
propylene glycol
Concentration:
12.5%, 25% and 50%
No. of animals per dose:
4
Positive control substance(s):
hexyl cinnamic aldehyde (CAS No 101-86-0)

Results and discussion

Positive control results:
SI 3.6

In vivo (LLNA)

Resultsopen allclose all
Parameter:
SI
Value:
0.5
Test group / Remarks:
For the mice treated at 12.5%
Parameter:
SI
Value:
0.5
Test group / Remarks:
For the mice treated at 25%
Parameter:
SI
Value:
0.8
Test group / Remarks:
For the mice treated at 50%

Applicant's summary and conclusion