uracil

A pyrimidine base, C₄H₄N₂O₂, that is an essential constituent of RNA.

A colorless compound, prepared by the action of hydrochloric acid on methylmercapto-uracil. It crystallizes in spherical masses of minute needles and melts at 338° C.

One of the bases of RNA. It pairs with adenine and is symbolised by U.

a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine