Sodium L-(+)-tartrate is used as an emulsifier, as a food additives, binding agent in food products like jellies, margarine and sausage casings. It is utilized as a common primary standard for Karl Fischer titration to measure the water content. It is also used as buffers for molecular biology and cell culture applications.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.