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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Remarks:
Type of genotoxicity: gene mutation
Type of information:
migrated information: read-across based on grouping of substances (category approach)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: QSAR Toolbox prediction
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 471 (Bacterial Reverse Mutation Assay)
GLP compliance:
not specified
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium 3-(4-methyl-2-nitrophenoxy)propanesulphonate
EC Number:
279-282-4
EC Name:
Sodium 3-(4-methyl-2-nitrophenoxy)propanesulphonate
Cas Number:
79817-52-0
Molecular formula:
C10H13NO6S.Na
IUPAC Name:
sodium 3-(4-methyl-2-nitrophenoxy)propane-1-sulfonate
Details on test material:
SMILES:Cc1ccc(OCCCS(=O)(=O)O{-}.[Na]{+})c(N(=O)=O)c1

Results and discussion

Test results
Key result
Species / strain:
other: QSAR Toolbox prediction of gene mutation
Metabolic activation:
not specified
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Remarks on result:
other: Prediction confidence is measured by the p-value = 1.31E-05 (very strong confidence)

Any other information on results incl. tables

The prediction was based on dataset comprised from the following descriptors: "gene mutation"
Estimation method: Takes highest mode value from the 5 nearest neighbours
Domain  logical expression:Result: In Domain

((("a" and "b" )  and "c" )  and ("d" and "e" )  )

Domain logical expression index: "a"

Referential boundary: The target chemical should be classified as SN1 AND SN1 >> Nitrenium Ion formation AND SN1 >> Nitrenium Ion formation >> Aromatic nitro by DNA binding by OECD

Domain logical expression index: "b"

Similarity boundary:Target: Cc1ccc(OCCCS(=O)(=O)O{-}.[Na]{+})c(N(=O)=O)c1
Threshold=50%,
Dice(Atom centered fragments)
Atom type; Count H attached; Hybridization

Domain logical expression index: "c"

Similarity boundary:Target: Cc1ccc(OCCCS(=O)(=O)O{-}.[Na]{+})c(N(=O)=O)c1
Threshold=60%,
Dice(Atom centered fragments)
Atom type; Count H attached; Hybridization

Domain logical expression index: "d"

Parametric boundary:The target chemical should have a value of log Kow which is >= -3.33

Domain logical expression index: "e"

Parametric boundary:The target chemical should have a value of log Kow which is <= 2.58

Applicant's summary and conclusion

Conclusions:
Based on the analysis of OECD QSAR toolbox, the substance is non-mutagenic.