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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 vivo mammalian germ cell study: cytogenicity / chromosome aberration
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:
1992

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EC-Guideline 92/69, B.12.
GLP compliance:
yes
Type of assay:
other: Non-bacteriological test in vivo - 6th amendment data

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

Test animals

Species:
mouse
Strain:
NMRI

Administration / exposure

Route of administration:
oral: unspecified
Vehicle:
dimethyl sulfoxide
No. of animals per sex per dose:
Male: CA 2000 mg/kg; No. of animals: 5; Sacrifice time: 24 hours
Male: CA 2000 mg/kg; No. of animals: 5; Sacrifice time: 48 hours
Female: CA 2000 mg/kg; No. of animals: 5; Sacrifice times: 24 hours
Female: CA 2000 mg/kg; No. of animals: 5; Sacrifice times: 48 hours

Results and discussion

Test results
Toxicity:
yes
Remarks on result:
other: n.a.
Additional information on results:
Observations:
Animal observation, mortality: no adverse test substance
related effects were noted
The number of micronucleated polychromatic erythrocytes was
not increased in comparison to negative controls.
Micronucleated PCE of the negative and positive controls
were in the historical range.

Applicant's summary and conclusion

Conclusions:
negative