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EC number: 941-761-7 | CAS number: 1297537-37-1
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Genetic toxicity: in vitro
Administrative data
- Endpoint:
- in vitro gene mutation study in bacteria
- Remarks:
- Type of genotoxicity: gene mutation
- 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:
- Gene mutation as microbial in vitro Salmonella was estimated by using four predictors: Leadscope, ACD/Percepta, Vega and Toxtree decision rule system.
- GLP compliance:
- no
- Type of assay:
- bacterial reverse mutation assay
Test material
- Reference substance name:
- 2-chloro-4-(1H-pyrazol-3-yl)benzonitrile
- EC Number:
- 941-761-7
- Cas Number:
- 1297537-37-1
- Molecular formula:
- C10H6N3Cl
- IUPAC Name:
- 2-chloro-4-(1H-pyrazol-3-yl)benzonitrile
Constituent 1
Results and discussion
Any other information on results incl. tables
Leadscope | ACD/Percepta | Vega | Toxtree | Consensus prediction |
NEGATIVE (moderate reliable) |
Out of the domain |
POSITIVE (not reliable) |
NEGATIVE Not reliable |
NEGATIVE Moderate reliable |
Leadscope FDA Model Applier prediction formicrobialin vitroSalmonellaresulted to be NEGATIVE, since the positive prediction probability was equal to 0.19. Since 4 features were found, it was concluded that 2-chloro-4-(1H-pyrazol-5-yl)benzonitrile is well 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 2-chloro-4-(1H-pyrazol-5-yl)benzonitrile from the training set.While this information don’t take part to the prediction, it provides complementary means to see how similar compounds are predicted and what the experimental values of similar compounds are. Fourteen structures were identified in the training set as analogues to 2-chloro-4-(1H-pyrazol-5-yl)benzonitrile (similarity > 30%) and one of them, Dichlobenil, is characterized by similarity indices greater than 0.5.This training compound exhibits moderate similarity with respect to 2-chloro-4-(1H-pyrazol-5-yl)benzonitrile (similarity index equal to 0.54), meaning that the 2-chloro-4-(1H-pyrazol-5-yl)benzonitrile compound is moderately represented in the training set of the model, and experimental consistent negative Ames test results. Based on these considerations, Leadscopeprediction was assessed as moderate reliable.
Vega predicted 2-chloro-4-(1H-pyrazol-5-yl)benzonitrile as positive, however the prediction was assessed as not reliable since the applicability domain index was equal to 0.67. In factthe similar molecules found in the training set have experimental values that disagree with the predicted value. Thus, the prediction was considered not reliable.
Toxtree predicted the 2-chloro-4-(1H-pyrazol-5-yl)benzonitrile as NOT-mutagen since it didn’t identify any structural alert for genotoxicity. The prediction was assessed as not reliablesince theADI (global Applicability Domain Index) was equal to 0.0. In fact, only moderately similar compounds with known experimental value in the training set have been found; the similar molecules found in the training set have experimental values that agree/disagree with the predicted value; the accuracy of prediction for similar molecules found in the training set is not optimal, and some atom centered fragments of the compound have not been found in the compounds of the training set or are rare fragments.
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information):
negative Moderate reliability
In the consensus assessment only reliable predictions are to be taken into account. In the case of 2-chloro-4-(1H-pyrazol-5-yl)benzonitrile, ACD/Percepta did not provide any prediction since the target was out of the model domain, while both Vega and Toxtree predictions resulted to be not reliable. Thus, based on Leadscope prediction, it was concluded that 2-chloro-4-(1H-pyrazol-5-yl)benzonitrile is predicted with a moderate level of confidence as NEGATIVE for microbial in vitro Salmonella.
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