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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
in vitro gene mutation study in bacteria
Remarks:
Type of genotoxicity: gene mutation
Type of information:
experimental study
Adequacy of study:
key study
Study period:
No data available, ECHA provided study summaries migrated from the SNIF format.
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1991

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Annex V (Ames)
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
3,3'-dioctadecyl-1,1'-methylenebis(4,1-phenylene)diurea
EC Number:
406-690-3
EC Name:
3,3'-dioctadecyl-1,1'-methylenebis(4,1-phenylene)diurea
Cas Number:
43136-14-7
Molecular formula:
C51H88N4O2
IUPAC Name:
3-octadecyl-1-[4-({4-[(octadecylcarbamoyl)amino]phenyl}methyl)phenyl]urea
Test material form:
other: No data available, ECHA provided study summaries migrated from the SNIF format.
Details on test material:
No data available, ECHA provided study summaries migrated from the SNIF format.

Method

Species / strain
Species / strain / cell type:
bacteria, other: Salmonella typhimurium TA 98, TA 100, TA 1535, TA 1537, TA 1538
Metabolic activation:
with and without
Metabolic activation system:
Aroclor induced rat liver S9
Test concentrations with justification for top dose:
Concentration range in the main test (with metabolic activation): 10 ... 5000 μg/plate
Concentration range in the main test (without metabolic activation): 10 ... 5000 μg/plate
Vehicle / solvent:
Solvent: Dimethylsulfoxide
Details on test system and experimental conditions:
Concentration of the test substance resulting in precipitation: 5000 μg/plate

Results and discussion

Test resultsopen allclose all
Species / strain:
other: Salmonella typhimurium TA 98, TA 100, TA 1535, TA 1537, TA 1538
Metabolic activation:
with
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
(> 5000 μg/plate)
Species / strain:
other: Salmonella typhimurium TA 98, TA 100, TA 1535, TA 1537, TA 1538
Metabolic activation:
without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
(> 5000 μg/plate)
Species / strain:
S. typhimurium TA 98
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
no cytotoxicity nor precipitates, but tested up to recommended limit concentrations
Remarks:
No toxicity at up to 5000 μg/plate
Vehicle controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format.
Untreated negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format.
True negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format.
Positive controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format.
Species / strain:
S. typhimurium TA 100
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
no cytotoxicity nor precipitates, but tested up to recommended limit concentrations
Remarks:
No toxicity at up to 5000 μg/plate
Vehicle controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format.
Untreated negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format.
True negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format.
Positive controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format.
Species / strain:
S. typhimurium TA 1538
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
5000 μg/plate
Vehicle controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Untreated negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
True negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Positive controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Species / strain:
S. typhimurium TA 1535
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Vehicle controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Untreated negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
True negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Positive controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Species / strain:
S. typhimurium TA 1537
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Vehicle controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Untreated negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
True negative controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Positive controls validity:
not specified
Remarks:
No data available, ECHA provided study summaries migrated from the SNIF format
Additional information on results:
Observations:
No increase in revertants was observed at any dose

Any other information on results incl. tables

Comments: Toxic concentration in preliminary test: with metabolic activation:

No toxicity observed up to 5000 micrograms/plate (TA98, TA 100) without metabolic activation:

No toxicity observed up to 5000 micrograms/plate (TA98, TA 100)

Toxic concentration in main test:

with metabolic activation: 5000 micrograms/plate for TA1538 (in one experiment only)

without metabolic activation: 5000 micrograms/plate for TA1538 (in one experiment only)

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information):
negative with metabolic activation
negative without metabolic activation