CAS NO. 87 - 90 - 1 Molecular formula C3CL3N3O3 UN NO. 2468 Moisture â?¤ 0.5% Avail. Chlorine â?¥ 90% PH (1% Solution) 2.7 - 3.3 Appearance white powder,granule,tablet Granular size 5-8 / 5-15 / 8-30 / 20-60 mesh Tablets 0.2 / 0.5 / 1 / 2 / 3 / 5 / 7 / 10 / 20 / 200g