一氧化氮（NO）染料

2,3-Diaminonaphthalene 是一种高效的、选择性的比色和荧光试剂，可用于亚硝酸盐的荧光测定，以及硒检测。

DAF-FM DA (Diaminofluorescein-FM diacetate) 是一种用于检测一氧化氮 (NO)和活性氮 （RNS） 水平的活性染料，可用于生物成像 (Ex Em=495 515 nm)。

DAF 2DA is widely used as a probe for NO measurement.

HKYellow-AM (6 12-mixture) is a fluorogenic probe, which can be used for sensitive and specific detection of peroxynitrite.

RB-OPD, also known as NO-red, is a fluorescent probe that combines o-phenylenediamine (OPD) and rhodamine nitric oxide (NO). With a λex of 550 nm and a λem of 590 nm, it exhibits exceptional sensitivity and selectivity.