Complete item name is 8-hydroxy-7 (4-sulfo-1-naphthylazo) -5-quinolinesulfonic acid, disodium salt; comes in purple powder form
NSN 5925-01-338-3494
NSN 6145-01-619-4942
NSN 6685-00-657-4697
NSN 6150-01-565-3780
NSN 4140-00-128-8072
NSN 5960-00-008-1455
NSN 6145-01-258-4738
NSN 4140-01-200-5032
NSN 5985-01-359-7167
NSN 5910-01-268-6420
NSN 6645-00-269-8440
NSN 5910-01-211-8675