Chemical name : 2-chlor-4-aminotoluene-5-sulfonate sodium Molecular formula : ch 3 c 6 h 2 clnh 2 (so 3 na) Molecular weight : 243.66 (according to 1989 international atomic weight standard) Packing : A . 25-500kg in polypropylene woven or paper bag lined with polyethylene film bag. B . Avoid rain, moisture and isolation in dry airiness place, no contact with corrosives matter, valid period is 12 months.