Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 202-715-5 | CAS number: 98-94-2
- 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

Endpoint summary
Administrative data
Description of key information
Short-term toxicity to fish
Mayes et al, 1989, GLP, based on OECD guideline 203, Oncorhynchus mykiss, analytical verification of test item conc., 96h LC50 = 28.1 mg/L (95% CI: 22.0 to 34.9 mg/L).
BASF AG, 1988, German Standard Test Guideline, DIN 38 412 L15, Leuciscus idus, no analysis of test item concentrations, 96h LC50 > 21.5 mg/L < 46.5 mg/L, 96h LC50 after pH-adjustment of highest test conc. (100 mg/L): >100 mg/L.
Based on these results DMCHA is considered as acutely harmful to aquatic organisms, however observed effects on mortality at higher test concentrations may be related to elevated pH values.
Long-term toxicity to fish
A long-term study on fish was waived
Short-term toxicity to aquatic invertebrates
Mayes et al, 1989, GLP, based on OECD guideline 202, Daphnia magna, chemical analysis of test item concentrations, 48h EC50 = 75 mg/L (95% CI: 65-150 mg/L).
Based on these results DMCHA is considered as acultely harmful to aquatic organisms.
Long-term toxicity to aquatic invertebrates
BASF SE, 2022, QSAR Toolbox, Trend analysis, test item within the
applicability domain of the model, Daphnia magna, 21d EC10 =
0.754 mg/L.
Based on this result DMCHA is considered as chronically harmful (Category chronic 3) to aquatic organisms
Toxicity to aquatic algae and cyanobacteria
BASF SE, 2019, GLP, OECD 201, Pseudokirchneriella subcapitata, analytical verification of test item conc., 72h ErC50 = 3.5 mg/L (95% confidence limits: 3.242 – 3.791), 72h ErC10 = 0.6 mg/L (95% confidence limits: 0.463 - 0.649).
Based on these results, DMCHA is considered acutely toxic for freshwater algae.
Toxicity to microorganisms
BASF AG, 1987, DIN 38412-8, Pseudomonas putida, EC50 = 206 mg/L, EC10 = 137.4 mg/L, EC100 = 402.2 mg/L.
Based on these results, the inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriately low concentrations.
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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