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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: 204-653-4 | CAS number: 123-81-9
- 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
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Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.1 (Acute Toxicity for Fish)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 203 (Fish, Acute Toxicity Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Analytical monitoring:
- yes
- Details on sampling:
- Duplicate samples from the freshly prepared test media of all test concentrations and the control were taken at the start of the test and at day 3.For the determination of the stability of the test item under the test conditions, respectively the maintenance of the test item concentrations during the test period, samples were taken in duplicate out of all test media and the control at day1 and at the end of the test (96 hours) from the approximate centre of the aquaria.
- Vehicle:
- no
- Test organisms (species):
- Oncorhynchus mykiss (previous name: Salmo gairdneri)
- Details on test organisms:
- Size and Weight: Juveniles;The mean body length of the fish* in the test was 4.89 cm ± 0.4 cm (Mean ± SD), the mean body wet weight 1.20 g ± 0.3 g (Mean ± SD).* 10 fish from the test fish batch were measured before the start of the testSex: Male and femaleOrigin: The test fish were obtained from Forellenzuchtbetrieb Störk, 88348 Bad Saulgau, Germany Holding Conditions: All fish were obtained and held in the laboratory for at least 12 days before the start of the test. They were held in water of the quality to be used in the test for at least seven days immediately before testing under the following conditions:Light: 16 hours photoperiod dailyTemperature: 13 - 17 °C Oxygen concentration: at least 80 % of the air saturation valueFeeding: three times per week or daily until 24 hours before the test was started During the last 7 days prior to the start of the test no fish (0 %) died in the test fish batch. Therefore the mortalities in the fish batch were below 5 % and the fish batch was accepted.
- Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
- pH:
- 7.5 to 7.9
- Key result
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- 0.508 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- not specified
- Remarks on result:
- other: Result will be added when study is completed.
- Sublethal observations / clinical signs:
Table 1. Observed Mortality of unfed Rainbow Trout (Oncorhynchus mykiss) exposed to GDMA for 96 hours
Nominal Concentration
Mortality [Number of Dead]
mg test item/L
0 h
24 h
48 h
72 h
96 h
Control
0
0
0
0
0
0.11
0
0
0
0
0
0.24
0
0
0
0
0
0.54
0
0
0
2
4
1.2
0
0
2
7
7
2.6
0
7
7
7
7
LC50 [mg test item/L]
-
-
-
-
0.508
95% CI.
-
-
-
-
0.376 - 0.687
- not relevant
CI.: Confidence interval
Values refer to nominal test concentrations.- Validity criteria fulfilled:
- yes
- Conclusions:
- The toxic effect of the test item GDMA to Oncorhynchus mykiss was
assessed in a semi-static concentration-response test. The 96-hour
EC50 was determined to be 0.508 mg test item/L.
The initial concentrations and the maintenance of the exposure
concentrations during the test were examined in the analytical part.
All reported results refer to nominal concentrations.
Reference
Description of key information
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Dose descriptor:
- LC50
- Effect concentration:
- 0.58 mg/L
Additional information
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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