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EC number: 206-126-4 | CAS number: 302-72-7
- 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
DL-alanine was observed to be readily biodegradable by Weltens (2018). In line with the expectations was L-alanine also found to be readily biodegradable.
Additional information
The ready biodegradability of DL-Alanine in water under aerobic conditions was determined according to OECD Guideline 301B (1992) - CO2-evolution test and in compliance with GLP criteria.
The amount of test and reference item added to the test vessels represented 20 mg/L C.
The inoculum (active sludge) was collected at a domestic wastewater treatment plant (City of Geel, Aquafin station). The sludge was washed and kept in the lab in low carbon conditions during 6 days. In the test vessels, 30 mg/L DW was used. The temperature was set to 19.5 - 22.0°C at diffuse light conditions.
The CO2produced in the test vessels was trapped in a 0.05 N NaOH solution. Samples were taken from the NaOH traps every 2-3 days for inorganic carbon (IC) measurements. The duration of the test was 20 days (started on 15/02/2018 - ended on 7/03/2018). All validity criteria were met.
The 10-days window started on day 4. The pass level (60% of ThCO2) was reached on day 11 and the plateau value (around 75% of ThCO2) was reached on day 16.
Based on these results DL-Alanine is considered ready biodegradable.
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