Near infrared heptamethine cyanine dyes applied as functional dyes are gradually extending their application fields. The structure of the dyes and their synthesis and applications were reviewed with 23 references.

• 近红处七甲川花菁染料作为功能染料不断得到广泛应用。本文主要对七甲川花菁染料的结构、合成及其应用进行了综述。参??文献23篇。