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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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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:
supporting study
Reliability:
2 (reliable with restrictions)
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report date:
2015

Materials and methods

Principles of method if other than guideline:
Chromosome aberrations in vivo on rodent predictions were generated employing the predictor Leadscope Model Applier.
GLP compliance:
no
Type of assay:
chromosome aberration assay

Test material

Constituent 1
Chemical structure
Reference substance name:
1-(oxan-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
EC Number:
640-188-7
Cas Number:
903550-26-5
Molecular formula:
C14H23BN2O3
IUPAC Name:
1-(oxan-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Test animals

Species:
other: rodent

Results and discussion

Any other information on results incl. tables

 

Name

Leadscope

Prediction

call

Leadscope

Positive

Prediction probability

Prediction reliability parameters

Model Features

Count

30% Sim. Training Neighbors Count

Reliability

assessment

1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

POSITIVE

0.54

3

2

BORDERLINE

RELIABLE

             

Leadscope FDA Model Applier prediction forchromosome aberrationin vivoother rodentresulted to be POSITIVE, since the positive prediction probability was equal to 0.54. Since 3 features were found, it was concluded that target1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole is represented by the model. Additionally, all the identified features are mainly represented in negative training compounds.The robustness of the prediction was further evaluated by examining compounds similar to the target from the training set.While this information does not take part to the prediction, it provides the complementary means to see how similar compounds are predicted and what the experimental values of similar compounds are. Two structures were identified in the training set as analogues to 1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (similarity > 30%) but none of them is characterized by similarity indices greater than 0.5.Thus, Leadscope prediction was assessed as borderline reliable.

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): positive
The consensus assessment was based on Leadscope Model Applier, concluding that the target substance is POSITIVE, although the prediction is of borderline reliability.