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Y1251 Millipore

Yeast Nitrogen Base Without Amino Acids and Ammonium Sulfate

for microbiology




Biotin, 2 μg/L
Calcium pantothenate, 400 μg/L
Folic acid, 2 μg/L
Niacin, 400 μg/L
p-Aminobenzoic acid, 200 μg/L
Pyridoxine HCl, 400 μg/L
Riboflavin, 200 μg/L
Thiamine HCl, 400 μg/L
Inositol, 2 mg/L
Boric acid, 500 μg/L
Copper sulfate, 40 μg/L
Potassium iodide, 100 μg/L
Ferric chloride, 200 μg/L
Manganese sulfate, 400 μg/L
Sodium molybdate, 200 μg/L
Zinc sulfate, 400 μg/L
Potassium phosphate monobasic, 1 g/L
Magnesium sulfate, 0.5 g/L
Sodium chloride, 0.1 g/L
Calcium chloride, 0.1 g/L


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.


1 kg in poly bottle

100 g in poly bottle


Preparation instructions
1. Prepare a 10× stock solution by suspending 1.7 g of yeast nitrogen base without amino acids and ammonium sulfate in 100 mL of cold distilled water. Include desired nitrogen and carbon sources.
2. Warm if necessary to solubilize and sterilize by filtration.
Store 10× stock solution at 2-8 °C. To use, dilute 1:10 with sterile distilled water under aspetic conditions.

Kit component only


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KH2PO4 1 g/L    
MgSO4 .5 g/L    
NaCl .1 g/L    
CaCl2 .1 g/L    
Inositol 2 mg/L    
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


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