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    HALS and its intermediate
    2,2,6,6-Tetramethyl-4-piperidone(Triacetonamine) 2,2,6,6-TetraMethyl-4-piperidinol
    1,2,2,6,6-Pentamethyl-4-piperidinol 4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy
    1-(2-Hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol 4-Amino-2,2,6,6-tetramethylpiperidine(TAD)
    N,N''-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine Hindered Amine Light Stabilizer(HALS)292
    Hindered Amine Light Stabilizer 622 Hindered Amine Light Stabilizer 944
    Hindered Amine Light Stabilizer 783 Hindered Amine Light Stabilizer(HALS)119
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