Succinic acid is a white, odorless solid with a highly acidic taste. As a food additive and dietary supplement, succinic acid is used primarily as an acidity regulator in the food and beverage industry. It is also available as a flavoring agent, contributing a somewhat sour and astringent component to umami taste. As an excipient in pharmaceutical products, it is also used to control acidity or as a counter ion.
Scientific References :
1. PubChem: https://pubchem.ncbi.nlm.nih.gov/compound/23690498