A Pentamethylene diisocyanate is obtained by phosgenating pentamethylenediamine or its salt obtained by a biochemical method, and contains 5 to 400 ppm of a compound represented by the general formula (1) below and a compound represented by the general formula (2) below in total:
一种五
亚甲基二异氰酸酯是由
五亚甲基二胺或其盐通过生化方法进行光合成而得, 其总含量为 5 至 400 ppm,由以下通式(1)代表的化合物和以下通式(2)代表的化合物: