Formulation: A solid
Formal Name: 2,3-naphthalenediamine
Purity: ≥98%
Formula Markup: C10H10N2
Formula Weight: 158,2
Shelf life (days): 1460
CAS Number: 771-97-1
Notes: 2,3-Diaminonaphthalene (DAN) is a fluorometric reagent for selenium and nitric oxide (NO).{65550,65551,65552} Upon binding to selenium, piazselenol is formed, which displays excitation/emission maxima of 365 and 525 nm, respectively.{65551} Upon binding to nitrite, the end product of the reaction between NO and oxygen in aqueous media, 1-(H)-naphthotriazole is formed, which displays excitation/emission maxima of 360 and 440 nm, respectively.{65552} DAN has been used in the detection of selenium in river water samples.{65550}