Di-tert-butyl iminodiacetate is a secondary amine.Di-tert-butyl iminodiacetate may be used as a reagent in the synthesis of: · multi-carboxylic acid-containing carbocyanine dyes · monosubstituted difunctionalized polyhedral oligomeric silsesquioxanes (POSS) monomers · multigenerational fluorinated dendrimers · 2,6-dipyrazol-1-ylpyridine derivatives It may also be used for the preparation of di-tert-butyl N-(4-allyloxy-4-oxobutanoyl)iminodiacetate. Di-tert-butyl iminodiacetate is a secondary amine.