Registration Dossier
Registration Dossier
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 202-473-0 | CAS number: 96-05-9
- 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

Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
No scientific well documented study is available for allyl methacrylate. In a biodegradation study ready biodegradation without bacteriotoxic effects at 100 mg/L were reported. Read across to the structural analogue methyl methacrylate was done instead. For methyl methacrylate, the inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate concentrations. Thus a NOEC of 100 mg/L was used for risk assessment.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
A weight of evidence approach is used for this endpoint. Data from the structural analogue, methyl methacrylate, was used together with data from biodegradation studies with allyl methacrylate. Both substances have very similar structural formulas and show similar physical/chemical, toxicological and ecotoxicological values. In addition behaviour in water (hydrolysis etc.) will result in very similar hydrolysis products.
Biodegradation data with the test substance allyl methacrylate at concentration of 100 mg/L show ready biodegradation. No toxic effects to the activated sludge were reported (see IUCLID section 5.2.1, MITI test).
Methyl methacrylate was non-toxic to activated sludge in a test for ready biodegradability according to the modified MITI (I) protocol. 96 % biodegradation were achieved within 14 d, indicating the absence of toxicity up to 100 mg/L (LGU, 2003). This is consistent with other microbial toxicity test results (Bringmann, 1988).
One study with limited reliability on the acute toxicity of allyl methacrylate to Pseudomonas putida is available. However, only limited information on the study performance is available. The test followed guideline DIN 38412, part 8 but the cell density was lower than recommended by the guideline. Based on the bacterial growth within 72 hours of exposure to allyl methacrylate an EC10 of 136 mg/L based on the nominal test concentration was determined (Roehm GmbH, 1988).
The results revealing more or less the same concentration range for effects and thus support the weight of evidence approach.
For risk assessment a worst case NOEC of 100 mg/L was used.
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.
