thymine nucleobase molecule. present in dna. skeletal formula.

thymine molecule formula skeletal nucleobase 5methyluracil acid atomic atoms base c5h6n2o2 carbon chemical chemistry composition compound deoxyribonucleic deoxythymidine dimer dna drawing flat hydrogen icon kink line medical medicine methyluracil molecular mutation nitrogen nucleic oxygen pyrimidine science structure t thy thymidine thymin thymus tymine ultraviolet uv