With the pigment for the fluorescent indicator and the pigment for the fluorescent indicator the indicator the living thing origin material which is done, and the reagent which contains those

摘要

PURPOSE:To realize the measurement with a small-scale semiconductor laser without being affected by biogenic substances present in the blood by using a specified compound as the constituent. CONSTITUTION:A fluorescent labeling dye of the formula [wherein A2 and A2 are each an aromatic ring consisting of C and H, or an aromatic ring consisting of C, H, N and/or O and/or S; R1 R2 and R3 are each alkyl, a heterocyclic ring residue, alkoxy, aryloxy, alkylthio, etc., or alkyl having these groups as substituents, or H; X1 is S, O, Se or NR4 (wherein R4 is R1, R2 or R3); and L is polymethylene]. The functional groups, such as amino or hydroxyl groups, in a biogenic substance are bonded directly or through an ionic or covalent bond to the functional groups, such as carboxyl or sulfo groups, of the dye.