Complete item name is 8-hydroxy-7 (4-sulfo-1-naphthylazo) -5-quinolinesulfonic acid, disodium salt; comes in purple powder form
NSN 5835-01-534-3172
NSN 7035-01-450-6795
NSN 5920-01-436-1885
NSN 6220-00-722-3151
NSN 5965-00-752-5823
NSN 5975-01-251-4595
NSN 5950-01-565-0460
NSN 5910-00-678-5475
NSN 5990-00-170-4239
NSN 6620-01-538-0061
NSN 5920-01-032-4756
NSN 5945-01-420-7776