Synthetic fluorescent brightening organic substance in bsb oba paper industry (di - sulphonic)), packed in 1150kg / carton, nsx: alan chemical industries ltd.�new 100%
Hcob-1 # & ob1 ob-1 (optical brightener ob-1) fluorescent formula c28h18n2o2 (95-100% ratio), code cas 1533-45-5, does not belong to list of chemicals must be declared newspaper