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EC number: 938-572-7 | 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

Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Data has been obtained from studies conducted with Reaction mass of 2-ethyl-2 -(methoxymethyl)-propane-1,3-diol and 2 -ethylpropane-1,3 –diol.
Aquatic tests covering 3 trophic levels (algae, daphnia, fish) were conducted. For all three trophic levels there was only one short-term study for each, with test concentrations based on nominals concentrations. The results of the three studies indicated that the L(E)C50 values were all >100 mg/L (Fish LC50 = 2,400 mg/L, Daphnia EC50 = 7,060 mg/L, Algal ErC50 = >100 mg/L).
However, there is insufficient data available for the freshwater organisms, further testing proposals for long term studies (OECD 210, OECD 211) were proposed in the section 6.1.2 to fulfill the data requirement (ANNEX IX) .
It has to be noted that, the lowest L(E)C50>100 mg/l obtained from the available acute studies performed with the substance DMP tech on the aquatic animals neither showed any hazard, nor fell under any of the identified hazard categories (CLP classification, article 14) for the protection target reported in the Section 3 of REACH Annex I. To comply with the REACH regulation, no PNEC was derived for the any of the environmental compartments (ECHA GD document B.8.4).
If new endpoints obtained from the proposed chronic studies on fish and daphnia will show further hazard, PNEC will be derived to perform a quantitative risk assessment.
As the substance is readily biodegradable and as no significant exposure is expected no PNEC for the STP is required. Moreover, the toxicity of the substance to STP microorganisms was derived from the 28 day ready biodegradability study presented in section 5. The average tested concentration of TOC (total organic carbon) in this study was 40.5 mg/L. Subtracting the 3 mg/L TOC contributed by the inoculum suggests that the test material reaction mass of 2-ethyl-2 -(methoxymethyl)-propane-1,3-diol and 2 -ethylpropane-1,3–diol was tested at 37. 5 mg TOC/L. The molecular weight of the test substance is 104.15 with a carbon weight 60.055. This indicates that the test substance is 57.66% carbon. Therefore 37.5 mg TOC/L for reaction mass of 2-ethyl-2 -(methoxymethyl)-propane-1,3-diol and 2-ethylpropane-1,3–diol equates to a total concentration of the test item of 65 mg/L. No inhibition was indicated in the biodegradability study at concentrations expected to be in the range of those present in influent of an STP. As such no risk to STP microorganisms is expected and so a further study to assess the short term toxicity to microbes is not required in accordance with Column 2 of REACH Annex IX.
Conclusion on classification
The test substance demonstrates no signficant toxicity to aquatic organisms. As such no hazards are indentified for the environment and the substance should not be considered harmful to aquatic organisms.
No classification is triggered based on available data, according to EEC Council Directive 79/831/EEC Annex VI, Part II (D) as described in Commission Directive 93/21/EEC or Regulation (EC) No 1272/2008,
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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