4-(4-Nitrophenylazo)resorcinol 90% (dye content), Sigma-Aldrich®
Supplier: SIGMA-ALDRICH MICROSCOPY
M-Clarity™ quality level = MQ200
114669-100GEA
260
EUR
114669-100G
114669-25G
4-(4-Nitrophenylazo)resorcinol 90% (dye content), Sigma-Aldrich®
4-(4-Nitrophenylazo)resorcinol
4-(4-Nitrophenylazo) resorcinol, also known as azo violet or magneson I, is a red colored powder. It functions as a spot test reagent and forms blue lake on reaction with Mg(OH)₂ in alkaline solution. It is mainly used for determining the presence of magnesium in the solution. 4-(4-Nitrophenylazo)resorcinol is a pH indicator.
Specification Test Results
Appearance (colour) | Orange to very dark orange and red to very dark red and dark red-orange and very dark red-brown |
Appearance (form) | Powder |
Infrared spectrum | Conforms to structure |
Wavelength | 439 - 445 nm |
Extinction coefficient, c = 0.005 g/L in methanol + 1 ml 0.1 N NaOH | ≥37000 |
Carbon | 49.5 - 61.7% |
Nitrogen | 14.4 - 18.0% |
Learn more
About VWR
Avantor is a vertically integrated, global supplier of discovery-to-delivery solutions for...