piperazine,benzofuranylmethyl,benzofuran,furan,piperazine,
Benzofuran
53660-41-61H,3H-Benzo(1,2-c:4,5-c)difuran-1,3,5,7-tetrone, polymer with 5,5-carbonylbis(1,3-isobenzofurandione) and 3,3-sulfonylbis(benzenamine) 158735-32-11,3-Isobenzofurandione, 4,5,6,7-tetrachloro-, polymer with 1,2-ethanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,3-isobenzofurandione and 2,2-oxybisethanol