5-Formylcytosine is a pyrimidine nitrogen base derived from cytosine.
References:
[1]. Buhimschi AD, et al. Targeting the C481S Ibrutinib-Resistance Mutation in Bruton's Tyrosine Kinase Using PROTAC-Mediated Degradation. Biochemistry. 2018 Jul 3;57(26):3564-3575.
















