N-15 and its labelled compounds 1.USAGE: N-15 labelled compounds as tracer nitrogen atoms are used extensively in various fields, such as agriculture, medicine, pharmacology, biology and chemistry.Various 15N-labelled compounds with different abundance can be produced, and its typical products are list below. Its solid products are in the form of white powder, with a chemical purity of 98--99%. 2.SPECIFICATION: Compound Atom Enrichment Ammonium Bicarbonate(15NH4HCO3) 5%-99% Ammonium Chloride(15NH4CL) 5%-99% Ammonium Dibasic((15NH4)2HPO4) 5%-99% Ammonium Dihydrgen(15NH4H2PO4) 5%-99% Ammonium Hydroxide(15NH4OH) 5%-99% Ammonium Nitrate(NH415NO3,15NH4NO3,15NH415NO3) 5%-99% Ammonium Sulphate((15NH4)2SO4) 5%-99% Calcium Nitrate(Ca(15NO3)2 )5%-99% Potassium Nitrate(K15NO3) 5%-99% Sodium Nitrate(Na15NO3) 5%-99% Sodium Nitrite(Na15NO2) 5%-99% Urea((15NH2)2CO) 5%-99% 3.PACKING: 10g/plastic bottle, 50g/plastic bottle, 500g/plastic bottle