Complete item name is 8-hydroxy-7 (4-sulfo-1-naphthylazo) -5-quinolinesulfonic acid, disodium salt; comes in purple powder form
NSN 5920-01-436-5138
NSN 5835-01-100-3265
NSN 5920-00-391-6252
NSN 5999-00-822-9497
NSN 5996-01-534-6853
NSN 6145-01-336-5465
NSN 5915-00-495-3159
NSN 5935-00-561-2437
NSN 6645-01-182-4896
NSN 5920-01-415-6546
NSN 5855-01-599-7164
NSN 5945-00-466-3748