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Diss Factsheets
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EC number: 263-418-4 | CAS number: 62121-76-0
- 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_ecotoxicological-information.png)
Short-term toxicity to fish
Administrative data
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1979-11-09 to 1979-11-16
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 979
- Report date:
- 1979
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 38412-L31
- GLP compliance:
- no
Test material
- Reference substance name:
- p-[4,5-dihydro-4-[[2-methoxy-5-methyl-4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulphonic acid, sodium salt
- EC Number:
- 263-417-9
- EC Name:
- p-[4,5-dihydro-4-[[2-methoxy-5-methyl-4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulphonic acid, sodium salt
- Cas Number:
- 62121-75-9
- Molecular formula:
- C20H22N4O11S3.xNa C20H(22-x)N4NaxO11S3; x<=2
- IUPAC Name:
- sodium 4-[4-(2-{2-methoxy-5-methyl-4-[2-(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1-yl)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl]benzene-1-sulfonate
- Test material form:
- liquid - solid: mixture of
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- no
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: dilution in test water (according to Marking & Dawson, 1973)
- Controls: negative
- Evidence of undissolved material (e.g. precipitate, surface film, etc.): no
Test organisms
- Test organisms (species):
- Leuciscus idus melanotus
- Details on test organisms:
- TEST ORGANISM
- Common name: golden orf
- Source: Paul Eggers, 2345 Hohenwestedt, Germany
- Length at study initiation (length definition, mean, range and SD): 5.8 - 7.8 cm, mean 6.4 cm, SD 0.4 cm, n=50
- Weight at study initiation (mean and range, SD): 2.0 - 3.7 g, mean 2.8 g, SD 0.35 g, n=50
ACCLIMATION
- Acclimation period: min. 14 d
- Acclimation conditions (same as test or not): same
- Type and amount of food during acclimation: TetraMin, ad libitum
FEEDING DURING TEST
- Amount: no feeding
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
Test conditions
- Hardness:
- carbonate hardness: 6.4°d
- Test temperature:
- 20°C
- pH:
- 7.5 - 8.3
- Dissolved oxygen:
- 7.8 - 8.4 mg/L
- Nominal and measured concentrations:
- Nominal: 0(control), 1, 10, 100, 500 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel: aquaria
- Material, size, headspace, fill volume: glass, 40 x 25 x 30 cm³, volume 20 L
- Aeration: yes
- No. of organisms per vessel: 10
- No. of vessels per concentration (replicates): 1
- No. of vessels per control (replicates): 1
- Biomass loading rate: 1 fish / 2 L
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: tap water
- Chlorine: dechlorinated
- Culture medium different from test medium: yes, salts according to Marking and Dawson added to test water
OTHER TEST CONDITIONS
- Photoperiod: 12/12
- Light intensity: 700 lux
EFFECT PARAMETERS MEASURED (with observation intervals if applicable) : mortality, behaviour, macroscopic pathology - Reference substance (positive control):
- no
Results and discussion
Effect concentrations
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- > 500 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Remarks on result:
- other: no mortality observed
- Details on results:
- - Behavioural abnormalities: fish swam at the surface in highest treatment
- Other biological observations: no macroscopic changes found in gross pathology
- Mortality of control: no mortality
- Effect concentrations exceeding solubility of substance in test medium: no
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The 96-h LC50 in a test with the golden orf (Leuciscus idus melanotus) was found to be >500 mg/L.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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