Is Pyrimidine tetramine, sulfate (1:1) vegan?

Tetraaminopyrimidine Sulfate is also known as Pyrimidine tetramine, sulfate (1:1).

Tetraaminopyrimidine Sulfate is the sulfate salt of 2,4,5,6-tetraaminopyrimidine, a synthetic pyrimidine derivative used as a hair dye precursor.

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