Yeast Nitrogen Base without Amino Acids and Ammonium Sulfate is used for classifying yeasts based on carbohydrate and amino acids requirements. Recommended for use in classifying yeasts based on carbon and nitrogen requirements. Contains all essential nutrients required for the growth of yeasts except amino acids, nitrogen and carbohydrate. Addition of nitrogen and carbon sources is required.

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.