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Diss Factsheets
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EC number: 939-875-7 | CAS number: -
- 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
Carcinogenicity
Administrative data
- Endpoint:
- carcinogenicity
- 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
Materials and methods
- Principles of method if other than guideline:
- Several computational tools are nowadays available for applying in silico approaches. Among them, for QSAR predictions the following were selected and used:
1. ACD/Percepta for the prediction of acute oral toxicity, skin and eye irritation, gene mutation (Ames test), micronucleus in vivo (rodent), carcinogenicity rat and mouse composite, acute aquatic toxicity (Daphnia), octanol-water partition coefficient (logKow)
2. Leadscope for the prediction of gene mutation (Ames test), chromosome aberration in vivo (rat and other rodent), micronucleus in vivo (mouse and rodent), carcinogenicity mouse and rat composite. - GLP compliance:
- no
Test animals
- Species:
- mouse
- Strain:
- not specified
- Sex:
- not specified
Results and discussion
Effect levels
- Dose descriptor:
- NOAEC
- Based on:
- test mat.
- Sex:
- not specified
- Basis for effect level:
- other: Positive; Little Reliability assessment
- Remarks on result:
- not determinable
- Remarks:
- no NOAEC identified. Effect type:carcinogenicity (migrated information)
Any other information on results incl. tables
In silico tool | Prediction | Positive Prediction Probability | Applicability domain | Reliability assessment |
ACD/Percepta | Undefined | 0.29 | Reliability index (RI) = 0.31 | BORDERLINE |
Leadscope Model Applier | POSITIVE | 0.62 | Model Fragments Count = 27 30% Sim Training Neighbors Count = 2 | LITTLE RELIABLE |
CONSENSUS | POSITIVE |
ACD/Percepta ACD/Percepta carcinogenicity on mouse prediction for 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol resulted to be undefined. In fact, the prediction is borderline reliable, being the reliability index equal to 0.31. Together with the prediction, Percepta displays up to 5 most structurally similar structures from the training set along with experimental carcinogenicity on mouse results for the corresponding compounds. The structural similarity is evaluated by a fragmental approach. The information on the structurally similar compounds in the training set is used to further assess the reliability of the prediction, since it illustrates how the test compound, i.e. 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol, is represented in the training set. This analysis can also help to better understand the reliability index value. The five most similar structures from the training set were identified along with their m carcinogenicity on mouse data, as illustrated belo. It has to be noted that they exhibit moderate similarity, with a similarity index lower than 0.7.
Salmeterol RN: 89365-50-4
Result: Negative
Similarity: 0.67
Bisopropol RN: 66722-44-9
Result: Negative
Similarity: 0.62
Bevantolol RN: 59170-23-9
Result: Negative
Similarity: 0.61
Betaxolol RN: 63659-18-7
Result: Negative
Similarity: 0.61
Estriol succinate RN: 514-68-1
Result: Positive
Similarity: 0.61
Leadscope Model Applier Leadscope FDA Model Applier prediction of carcinogenicity on mouse for 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol resulted to be positive since the positive prediction probability is equal to 0.62. The reliability of the prediction is evaluated by two parameters: Model Fragment Count. Parameter used to verify that the test compound contains a significant number of fragments that are present in the prediction model. The prediction is reliable if at least one model fragment is present in the test compound. 30% Similarity Training Neighbours Count. Number of compound structurally similar to the test compound. In the case of 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol, 27 fragments were found, and two similar structures were identified in the training set as analogs to 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol. The similar training structure, i.e. Bisoprolol and Bosentan, are characterized by a little similarity with 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol. In addition, their experimental data are inconsistent with the prediction, being Bisoprolol negative and Bosentan positive. Thus it was concluded that 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol is predicted positive but the prediction has little reliability, since the similar training structures exhibit a little similarity with 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol, and exhibit controversial data.
Applicant's summary and conclusion
- Conclusions:
- The carcinogenicity on mouse of 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol was predicted employing two in silico predictors: the QSAR models provided by ACD/Percepta and Leadscope Model applier. The two predictors were employed in order to apply a consensus analysis to enhance the reliability of the prediction. Based on Leadscope prediction, it was concluded that 1-(4-(2-(benzyloxy)ethoxy)phenyl)-1,2-diphenylbutane-1,4-diol is positive on carcinogenicity on mouse.
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