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EC number: 239-784-6 | CAS number: 15687-27-1
- 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
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study with analytical monitoring
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Ibuprofen
- EC Number:
- 239-784-6
- EC Name:
- Ibuprofen
- Cas Number:
- 15687-27-1
- Molecular formula:
- C13H18O2
- IUPAC Name:
- 2-(4-isobutylphenyl)propanoic acid
- Details on test material:
- - Name of test material (as cited in study report): Ibuprofen 38
- Physical state: solid/white
- Analytical purity: 100%
- Batch No.: IB1Q0091
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Vehicle:
- no
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION
- Method: The test solutions were prepared seperatly by directly adding test substance to 1 L of test medium and stirred for approximately one day. Undissolved test substance was removed by filtration with a membrane filter (pore width 0.2 μm).
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Common name: water flea
- Source: The clone of Daphnia magna STRAUS 1820 used was supplied by the Institut National de Recherche Chimique Appliquée, France, in 1978. From this date on this clone was cultured and bred continuously in the Laboratory of Ecotoxicology of the Experimental Toxicology and Ecology of BASF SE in Ludwigshafen
- Age at study initiation: < 24 hours (at least 3rd brood progeny)
- Feeding during test: none
CULTURE CONDITIONS
- Photoperiod: 16 hours light, 8 hours darkness
- Culture media: synthetic fresh water (Elendt M4) prepared according to OECD 202
- Temperature: 20 ± 1 °C
- Diet: Unicellular algae Desmodesmus subspicatus, cultured continuously at the test facility
- Feeding: Daily
- Renewal of the culture water: Twice weekly
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
Test conditions
- Hardness:
- 2.20 – 3.20 mmol/L
- Test temperature:
- 19-21 °C
- pH:
- 7.5 – 8.5
- Dissolved oxygen:
- 8.3 - 8.8 mg/L
- Nominal and measured concentrations:
- Nominal test concentrations: control, 4.6, 10, 22, 46, 100 mg/L
Mean measured concentrations: -, 2.8, 9.9, 22.1, 46.6, 101.2 mg/L - Details on test conditions:
- TEST SYSTEM
- Test vessel: Glass beakers (nominal volume 100 ml)
- Test volume: 50 ml
- Aeration: none
- No. of organisms per vessel: 5
- No. of vessels per concentration (replicates): 4
- No. of vessels per control (replicates): 4
- Biomass loading rate: 0.1 animals/ml
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: A synthetic fresh water (Elendt M4) is used as media for culture and test purposes. Composition according to OECD guideline 202.
- Alkalinity: 0.87 mmol/L
- Ca/Mg ratio: about 4:1
- Conductivity: 574 µS/cm
- Culture medium different from test medium: no
- Intervals of water quality measurement: Temperature - continuous monitoring; pH and oxygen content - after 0 and 48 hours
OTHER TEST CONDITIONS
- Photoperiod: 16 hours light : 8 hours darkness
- Light intensity: About 20 – 850 lux at a wave length of 400 -750 nm
EFFECT PARAMETERS MEASURED: immobilisation after 0, 24, 48 hours
TEST CONCENTRATIONS
- Prelimenary study: yes, the 48 hour EC50 was between 10 and 100 mg/L - Reference substance (positive control):
- yes
- Remarks:
- potassium dichromate
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 48 h
- Dose descriptor:
- EC0
- Effect conc.:
- 10 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 36.6 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Duration:
- 48 h
- Dose descriptor:
- EC100
- Effect conc.:
- 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Details on results:
- - Mortality of control: none
- Effect concentrations exceeding solubility of substance in test medium: no remarkable observations, clear test medium - Results with reference substance (positive control):
- Effect concentrations:
EC0 = 9.9 mg/L
EC50 = 36.9 mg/L
EC100 = 101.2 mg/L
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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