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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
in vitro gene mutation study in bacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 471 (Bacterial Reverse Mutation Assay)
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
2-mercaptobenzothiazolyl-(Z)-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonyl) isopropoxyiminoacetate
EC Number:
419-040-9
EC Name:
2-mercaptobenzothiazolyl-(Z)-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonyl) isopropoxyiminoacetate
Cas Number:
89604-92-2
Molecular formula:
C20H22N4O4S3
IUPAC Name:
tert-butyl 2-{[(Z)-[1-(2-amino-1,3-thiazol-4-yl)-2-(1,3-benzothiazol-2-ylsulfanyl)-2-oxoethylidene]amino]oxy}-2-methylpropanoate

Method

Species / strain
Species / strain / cell type:
bacteria, other: sat TA 98, 100, 1535, 1537, 1538
Metabolic activation system:
S9-Mix aus Rattenleber "ENGLISH" S9-mix from rat liver
Test concentrations with justification for top dose:
Concentration range in the main test (with metabolic activation): 50 ... 5000 μg/plate
Concentration range in the main test (without metabolic activation): 50 ... 5000 μg/plate
Vehicle / solvent:
Solvent: DMSO

Results and discussion

Test resultsopen allclose all
Species / strain:
other: as specified above
Metabolic activation:
with
Genotoxicity:
other: n.a.
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
5000 μg/plate
Species / strain:
other: as specified above
Metabolic activation:
without
Genotoxicity:
other: n.a.
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
5000 μg/plate
Additional information on results:
Observations:
Keine Abweichungen gegenüber den Kontrollgruppen
"ENGLISH"
No changes

Applicant's summary and conclusion

Conclusions:
negative with metabolic activation
negative without metabolic activation