A novel pyrylium compound is represented by the general formula (I):
wherein X is oxygen or sulfur, Y- is a monovalent anion, n is an integer of 2 or 3, and M is hydrogen or an alkali metal. This pyrylium compound functions as a labeling agent by intermolecular bonding to nucleic acids, and as a fluorescence label having a chemical bond with the nucleic acids and an excitation wavelength in a visible light region.
一种新型
吡镱化合物由通式 (I) 表示:
其中 X 是氧或
硫,Y- 是一价阴离子,n 是 2 或 3 的整数,M 是氢或碱
金属。这种
芘化合物通过与核酸的分子间键合来作为标记剂,并作为荧光标记与核酸形成
化学键,其激发波长在可见光区域。