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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The test was conducted according to EU Method in compliance with GLP.

Data source

Reference
Reference Type:
other: body responsible for the test
Title:
Unnamed
Year:
1997

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: 92/69/EEC (Ames)
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Reference substance name:
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine
IUPAC Name:
phenyl bis(2,4,6-trimethylbenzoyl)-phosphine
Constituent 2
Chemical structure
Reference substance name:
Phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide
EC Number:
423-340-5
EC Name:
Phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide
Cas Number:
162881-26-7
Molecular formula:
C26H27O3P
IUPAC Name:
[phenyl(2,4,6-trimethylbenzoyl)phosphoryl](2,4,6-trimethylphenyl)methanone

Method

Species / strainopen allclose all
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102
Species / strain / cell type:
E. coli WP2 uvr A
Metabolic activation:
with and without
Metabolic activation system:
Rat liver (S9 fraction)
Test concentrations with justification for top dose:
Concentration range in the main test (with metabolic activation): 312.5 ... 5000 µg/plate
Concentration range in the main test (without metabolic activation): 312.5 ... 5000 µg/plate
The substance was tested for mutagenic effects with and without S9 rat liver at a range of 312.5 to 5000 µg/plate.
Vehicle / solvent:
Solvent: Dimethylsulfoxide
Details on test system and experimental conditions:
Concentration of the test substance resulting in precipitation: 625 µg/plate

Results and discussion

Test resultsopen allclose all
Species / strain:
other: as specified above
Metabolic activation:
with
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
(> 5000 µg/plate)
Species / strain:
other: as specified above
Metabolic activation:
without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
(> 5000 µg/plate)
Species / strain:
other: as specified above
Metabolic activation:
without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
(> 2500 µg/plate)
Remarks on result:
other: other: preliminary test
Remarks:
Migrated from field 'Test system'.

Applicant's summary and conclusion

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

The test substance was not mutagenic in S. typhimurium strains TA98, TA100, TA1535, TA1537 and Strain of E. coli WP2 uvrA at doses up to 5000 µg/plate either in the presence or absence of metabolic activation provided by rat liver S9 fraction.