Registration Dossier
Registration Dossier
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EC number: 824-962-3 | CAS number: 14488-58-5
Endpoint summary
Administrative data
Description of key information
Calcium azelate is considered to be readily biodegradable based on data read across from structural analogue substances.
Additional information
In water, calcium azelate is expected to dissociate to calcium ions and azelaic acid. As it is inorganic, the calcium ion will not undergo biodegradation, however, the acid component may be biodegraded. Although no data are available on calcium azelate itself, there are data for structural analogue substances, carboxylic acids which bracket the chain length of the calcium salt. The structural analogue adipic acid (C6) is readily biodegradable based on publicly available data from five ready biodegradation tests and this result has been read across to azelaic acid (C9), the organic component of calcium azelate. This conclusion is supported by Mizuki et al (2010), which shows that longer-chain metal salts of carboxylic acids (approximately 60% sodium oleate (C18 unsaturated) and 40% potassium laurate (C12)) are also readily biodegradable.
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