A compound represented by the following formula (I):
1
wherein R
1
and R
2
represent amino groups that substitute at adjacent positions on the phenyl ring, provided that either of R
1
and R
2
represents a mono(C
1-6
alkyl)-substituted amino group and the other represents an unsubstituted amino group; and R
3
and R
4
independently represent hydrogen atom or an acyl group, and an agent for measurement of nitrogen monoxide which comprises said compound.
以下公式(I)所代表的化合物:1其中,R1和R2代表取代苯环相邻位置的
氨基基团,但其中任意一个代表一种单一的(C1-6烷基)取代的
氨基基团,另一个代表未取代的
氨基基团;R3和R4独立地代表氢原子或酰基基团,以及一种用于测量
一氧化氮的试剂,其中包括所述化合物。