N,N′-Diisopropylcarbodiimide is an alternative to dicyclohexylcarbodiimide in peptide synthesis. A reagent for peptide synthesis. Application： N,N'-Diisopropylcarbodiimide is used as a reagent in synthetic organic chemistry. It serves as a chemical intermediate and as a stabilizer for Sarin (chemical weapon). It is also used in the synthesis of peptide and nucleic acid. Further, it is used as an antineoplastic and involved in the treatment of malignant melanoma and sarcomas. In addition to this, it is used in the synthesis of acid anhydride, aldehyde, ketone and isocyanate.