Tributylammonium pyrophosphate is an organic intermediate that has been documented for the preparation of a base-modified nucleotide. 

Tributylammonium pyrophosphate is used as a phosphorylation reagent for the synthesis of phosphorylated deoxynucleosides. 

It is used as a reactant in the following reactions: enzymatic synthesis of 3'-deoxy-apio-nucleic acid duplexes; 

synthesis of deoxynucleoside S-methylphosphonic acid; 

preparation of the fluorescent non-nucleotide ATP analogue N-methyl-o-aminobenzamide ethyl triphosphate;

 and for triphosphate synthesis due to its low water content and high solubility in organic solvents.

 The product needs to be protected from water and stored at -20°C.