【化】 丁基黄原酸

butyl cellosolve

butyl urethane

butyl acetate

Butyl Cellosolve

HR；Brtyl Rubber,Isprene Isobutylene Copolymer(ASTM)

Methyl Tertiary Butyl Ether (MTBE)

2-Butyl-3-methylpyrazine

2-Tertiary-butyl-4-methylphenol