1-Isopropylurea 691-60-1 1-Isopropylurea (CAS 691-60-1), also known as N-isopropylurea or isopropylcarbamide, is a simple monosubstituted urea of the N-alkyl urea chemical class. This compound is a key part of making DPP-4 inhibitors, especially Alogliptin. These are important building blocks for drugs that work on the cardiovascular, metabolic, and central nervous systems. ICH Q3A starting material control applies. 

ApiSyn provides 1-Isopropylurea (CAS 691-60-1) as a pharmaceutical-grade synthetic building block and reference standard for the development of DPP-4 inhibitors and the analysis of residual starting materials in the API process.