CAS: 71-30-7 EC No: 200-749-5 MDL No: MFCD00006034 RTECS: UW7350150 Powder Molecular Formula: C₄H₅N₃O MW: 111.10 Melting Point: >300°

It is one of the four main bases found in DNA and RNA, along with adenine, guanine, and thymine (uracil in RNA). It is a pyrimidine derivative, with a heterocyclic aromatic ring and two substituents attached. The nucleoside of cytosine is cytidine. In Watson-Crick base pairing, it forms three…