Xinhua Pharmaceutical (Shouguang) Co.,Ltd.

    Sulfuric acid

    Methyl acetoacetate

    Neopentyl glycol

    4-amino-1-3-dimethyl-2-6-dioxy-5-nitrosopyrimidin

    Acetoacetanilide

    Diketene

    6-amino-1,3-dimethyluracil

    1-Phenyl-3-methyl-5-pyrazolone

    Chloropropionyl chloride