Novel compounds represented by the following general formula (1) and salts thereof: ##STR1## wherein n represents an integer of 3 to 4, R.sup.1 represents ##STR2## or --SO.sub.2 R.sup.2, and R.sup.2 represents optionally branched lower alkyl group having 1 to 6 carbon atoms, phenyl group, benzyl group or tolyl group, which are useful as substrate for use in the measurement of biological components; a substrate for use in the measurement of biological component which comprises said novel compound or salt thereof; and a method for measuring biological component which comprises using said substrate.
以下是用以下通式(1)表示的新化合物及其盐的范围:##STR1## 其中n表示3至4的整数,R1表示##STR2## 或--SO.sub.2 R2,而R2表示可选择支链烷基,其具有1至6个碳原子,苯基,苄基或
甲苯基,这些化合物在
生物组分测量中作为底物有用; 包括所述新化合物或其盐的用于测量
生物组分的底物;以及使用所述底物的测量
生物组分的方法。