The molecule is an N-substituted putrescine that is thymine in which a hydrogen of the methyl group has been replaced by one of the amino groups of putrescine. It replaces about half of the thymine residues in the DNA of bacetriophage phiW-14. It is a pyrimidone, a N-substituted putrescine, a secondary amino compound, a tertiary amino compound and a pyrimidine nucleobase. It derives from a thymine.
5-[(4-aminobutylamino)methyl]-1H-pyrimidine-2,4-dione