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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Genetic toxicity: in vitro

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Administrative data

Endpoint:
in vitro gene mutation study in bacteria
Remarks:
Type of genotoxicity: gene mutation
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Peer-reviewed, non-GLP study

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1970

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 471 (Bacterial Reverse Mutation Assay)
Deviations:
yes
Remarks:
Test concentration was not accurately determined.
GLP compliance:
no
Remarks:
pre-GLP research project
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
Ammonium sulphamidate
EC Number:
231-871-7
EC Name:
Ammonium sulphamidate
Cas Number:
7773-06-0
Molecular formula:
H3NO3S.H3N
IUPAC Name:
ammonium sulfamate
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
90 to 99% pure

Method

Target gene:
Histidine operon
Species / strain
Species / strain / cell type:
S. typhimurium, other: TA97, TA98, TA100, TA102, TA104, TA1535, TA1537, TA1538
Additional strain / cell type characteristics:
not applicable
Metabolic activation:
not applicable
Test concentrations with justification for top dose:
A small crystal of a substance (approximately 1 to 5 µl of asubstance in solution)
Controls
Untreated negative controls:
no
Negative solvent / vehicle controls:
no
True negative controls:
no
Positive controls:
yes
Positive control substance:
N-ethyl-N-nitro-N-nitrosoguanidine
other: diethyl sulfate

Results and discussion

Test results
Species / strain:
S. typhimurium, other: TA97, TA98, TA100, TA102, TA104, TA1535, TA1537, TA1538
Metabolic activation:
not applicable
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Vehicle controls validity:
not applicable
Untreated negative controls validity:
not applicable
Positive controls validity:
valid
Remarks on result:
other: all strains/cell types tested
Remarks:
Migrated from field 'Test system'.

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information):
negative

Under conditions of this in vitro test, ammonium sulfamte was not demonstrated to be mutagenic.