Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Remarks:
Type of genotoxicity: chromosome aberration
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: (Q)SAR analyse according to OECD QSAR Tool version 2.3 (March 2012)
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: “GUIDANCE DUCUMENT ON THE VALIDATION OF (QUANTITATIVE) STRUCTURE-ACTIVITY RELATIONSHIPS MODEL” (OECD 2007) and “GUIDANCE ON INFORMATION REQUIREMENTS AND CHEMICAL SAFETY ASSESSMENT / CHAPTER R.6: QSARS AND GROUPING OF CHEMICALS” ( ECHA 2008)
GLP compliance:
no
Type of assay:
chromosome aberration assay

Test material

Constituent 1
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

Test animals

Species:
rat

Results and discussion

Test results
Sex:
male/female
Genotoxicity:
negative
Toxicity:
not specified

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): negative
The predicted value as “negative” evaluates that the substance is not mutagenic in rat (chromosome aberration). By predicting “Chromosome Aberration”, QSAR model used a Log Kow value of 4.65 calculated by KOWWIN v 1.67 and it falls within applicability domain.The predicted value is therefore reliable and the model is applicable to the substance.