Botany, parasitology and zoology.
- Acridine Yellow.
- acridine orange 3 R zinc chloride double salt.
- Acriflavine
- Carmine Alum
- Ingrain Blue 1
- Alcian Yellow GXS
- Alcian Green 2 GX.
- Alcian Green 3 BX
- Alizarine Pure.
- Alizarine Blue B
- Alizarine Brilliant Violet R.
- Alizarine Carmine.
- Alizarine Yellow R.
- Alilzarine Purple RS
- Alizarine red S.
- Alizarine Violet 3B
- Alphazurine 2G.
- Amaranth O.
- Amido Black 10 B.
- Aniline Blue, Water Soluble.
- Aniline Blue-Orange, Halmi-Koneczny .
- Aniline Blue-Orange, Mallory.
- Aniline Yellow.
- Aniline Green.
- Aniline Red.
- Aniline Black.
- Astra Blue FM
- Auramin O, Pyoktanin Aur..
- Azan Mixture, Haidenhain.
- Azidine Yellow 5G.
- Azo Phloxine.