Indigo carmine, C16H8N2Na2O8S2, CAS Number-860-22-0, Acid Blue 74, 5, 5'-Indigodisulfonic acid, disodium salt, C.I. 73015, 100g, 0.98 to 1.07, 25, 304, Blue to Purple, 80% min., 466.34, Pure, GHS H Statement: Harmful if swallowed.
Methylene Blue hydrate, 96%, C16H20ClN3OS, CAS Number-122965-43-9, C.I. 52015 hydrate, Basic Blue 9 hydrate, 100g, Green, 96.0 to 103.0% (on dried substance), 319.85, Warning, GHS H Statement: Harmful if swallowed.