Is 2,4-(1H,3H)-Pyrimidinedione, 5-methyl- vegan?

Thymine is also known as 2,4-(1H,3H)-Pyrimidinedione, 5-methyl-.

Thymine is one of the four nucleobases in DNA, a pyrimidine derivative also known as 5-methyluracil; it is produced synthetically for cosmetic and research use, though it was first isolated from calf thymus glands.

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