Aspartic Acid, as a natural amino acid, has important market applications in various fields. The following is a detailed analysis of its main areas of use: **Application Areas and Main Purposes/Product Functions and Effects:** - **Medicine and Health Products:** - Drug synthesis (such as aspartic acid ornithine, peramivir), injections (…) Please note that the original text seems to be incomplete at the end. If you have the full text, I can provide a more complete translation.