Is Diethyl DL-aspartate vegan?

Diethyl Aspartate is also known as Diethyl DL-aspartate.

Diethyl Aspartate, also known as diethyl DL-aspartate, is a diethyl ester of the amino acid aspartic acid, used in cosmetics as a skin-conditioning agent. It is produced synthetically. Note: the CAS/EC numbers provided correspond to diethyl ether, not diethyl aspartate; the correct identifiers could not be confirmed.

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