Six straight chain of fatty acid compounds: palmic acid(13), n-hexacosanoic acid(14), n-octacosanoic acid(15), n-triacontanoic acid(16), succinic acid(17), adipic acid(18). A alkaloid compound: allantoin(19).

• 6个直链脂肪酸:棕榈酸(palmic acid)(13),正二十六碳酸(n-hexacosanoic acid)(14),正二十八碳酸(n-octacosanoic acid)(15),正三十碳酸(n-triacontanoic acid)(16),琥珀酸(succinic acid)(17),己二酸(adipic acid)(18);