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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only short study summary

Data source

Reference
Reference Type:
other: Material Safety Data Sheet
Title:
Material Safety Data Sheet
Author:
Chemada Fine Chemicals Ltd., Israel
Year:
2009
Bibliographic source:
Chemada Fine Chemicals Ltd. 22/03/2009 Material Safety Data Sheet CAS number 821-06-7

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.42 (Skin Sensitisation: Local Lymph Node Assay)
Deviations:
no
Principles of method if other than guideline:
No data
GLP compliance:
yes
Type of study:
mouse local lymph node assay (LLNA)

Test material

Constituent 1
Chemical structure
Reference substance name:
(E)-1,4-dibromobut-2-ene
EC Number:
212-472-7
EC Name:
(E)-1,4-dibromobut-2-ene
Cas Number:
821-06-7
Molecular formula:
C4 H6 Br2
IUPAC Name:
1,4-dibromobut-2-ene
Details on test material:
- Analytical purity: 98%

In vivo test system

Test animals

Species:
mouse
Strain:
other: CBA/Ca
Sex:
not specified
Details on test animals and environmental conditions:
No data

Study design: in vivo (LLNA)

Vehicle:
acetone/olive oil (4:1 v/v)
Concentration:
0
0.25
0.5
1.0
No. of animals per dose:
4 animals per dose
Details on study design:
No data
Statistics:
No data

Results and discussion

Positive control results:
No data

In vivo (LLNA)

Resultsopen allclose all
Parameter:
SI
Remarks on result:
other: see Remark
Remarks:
Concentration (%v/v) in aceton/olive oil 1:4 Stimulation index 0.25 5.08 0.5 5.27 1 6.30
Parameter:
other: disintegrations per minute (DPM)
Remarks on result:
other: No data

Applicant's summary and conclusion

Interpretation of results:
sensitising
Remarks:
Migrated information
Conclusions:
According to the described method the test substance trans-1,4 -Dibromo-2 -butene is classified as sensitiser following EU ( R43: May cause sensitisation by skin contact) and GHS (Skin Sens. 1) requirements.
Executive summary:

According to the described method the test substance trans-1,4 -Dibromo-2 -butene is classified as sensitiser following EU (R43: May cause sensitisation by skin contact) and GHS (Skin Sens. 1) requirements.