Speciality Intermediates Products CAS # 1 H Tetrazole 288 - 94 - 8 5 Amino Tetrazole 4418 - 61 - 5 Mercuric Chloride - LR/AR 7487 - 94 - 7 Mercuric lodide 7774 - 29 - 0 Mercuric Oxide (Yellow) 21908 - 53 - 2 Mercuric Oxide (Red) 21908 - 53 - 2 Mercuric Sulphate - AR/LR 7783-35-9 Ninhydrin 485 - 47 - 2 Pyra Phosphoryl Tetra Chloride 13498 - 14 - 1 Sulphanilic Acid 121 - 57 - 3