Registration Dossier
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EC number: 213-561-3 | CAS number: 980-26-7
- 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

Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 10 October 2006
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable study report which meets basic scientific principles
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
- Report date:
- 2006
Materials and methods
- Principles of method if other than guideline:
- About 5 mg of the test sample were suspended in 30 ml octanol saturated water (bi dest.) in a sample flask and were shaken for two hours at 30°C with 400 rpm. Then shaking was continued at ambient temperature (24 ¿ 25°C) for 70 hours, followed by filtration through a 0.05 µm membrane filter.
The resulting clear solution was measured by UV-vis spectrometry and the absorption was determined at lambda 599 nm. The determination was repeated three times.
A similar procedure was used for water saturated octanol, apart that filtration was through a 0.2 µm membrane filter and then through two identical filters and that absorption was determined at lambda-max 539 nm.
Calibration for determination of concentration of the samples: calibration curve of Pigment Red 122 in TFA - GLP compliance:
- not specified
- Type of method:
- shake-flask method to: flask method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- 5,12-dihydro-2,9-dimethylquino[2,3-b]acridine-7,14-dione
- EC Number:
- 213-561-3
- EC Name:
- 5,12-dihydro-2,9-dimethylquino[2,3-b]acridine-7,14-dione
- Cas Number:
- 980-26-7
- Molecular formula:
- C22H16N2O2
- IUPAC Name:
- 2,9-dimethyl-5,7,12,14-tetrahydro-5,12-diazapentacene-7,14-dione
Constituent 1
Study design
- Analytical method:
- photometric method
Results and discussion
Partition coefficientopen allclose all
- Type:
- Pow
- Partition coefficient:
- 150
- Temp.:
- 24 °C
- pH:
- ca. 7
- Type:
- log Pow
- Partition coefficient:
- 2.2
- Temp.:
- 24 °C
- pH:
- ca. 7
Any other information on results incl. tables
The solubility of the sample Pigment Red 122 in octanol saturated water at ambient temperature, determined under the conditions as mentioned below, is 5.6 µg per liter (mean, n=3, range: 3.0 -8.7 µg/L, sigma = 2.9).
The solubility of the sample Pigment Red 122 in water saturated octanolat ambient temperature, determined under the conditions as mentioned below, is 0.84 mg per liter (mean, n=3, range: 0,82 -0.85 mg/L,
sigma = 0.02).
The temperature given is 24 -25°C (24°C entered above).
Applicant's summary and conclusion
- Conclusions:
- The test substance has a log Pow of 2.2.
- Executive summary:
- The log Pow of the test substance was calculated from the solubilities in octanol saturated water and in water saturated octanol. The log Pow at 24-25°C was 2.2.
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