Five Schiff bases were prepared from piperonal and diamines by condensation reaction.

合的双-胡椒醛缩二胺类席夫碱化合物。

After the process of chlorization, hydrolytic decomposition and condensation, the hemopexis acid amine product was obtained.

用胡椒醛为起始原,经氯化、水解、缩合,制得血凝酸胺。

Composition of 1,8 - cineole (80%), camphene, phellandrene, Terpineol acetate, geraniol, isoamyl aldehyde, citronellal, and pepper ketones.

组1,8-桉叶素（80%以上）、莰、水、品醇、乙酸香叶醇、异戊醛、香茅醛和胡椒酮等。