Hexa Hydro Phthalic Anhydride(HHPA) Name: HHPA CAS No.: 85-42-7 Functions: Mainly used in paints, epoxy curing agents, the polyester resins, adhesives, plasticizers, intermediates to prevent rust, etc. Packaging & Storage: 25kg/barrel, 220kg/barrel This product shall be tightly closed, out of the sun, moisture-proof and away from ignition source. The storage period is one year.