Topilene ® R530A ke polypropylene random copolymer e entsoeng ka ho khetheha e nang le ts'ebetso e babatsehang ea ho sebetsa le ho hlaka hantle. E loketse lihlahisoa tsa meriana, tsa litlolo le tsa lijo. Topilene ® R530A e lumellana le litlhoko tsa FDA ho khoutu ea Federal Regulations ho 21 CFR 177.1520 bakeng sa ho kopana le lijo. Sehlahisoa sena se fetile tlhahlobo ea US Pharmacopoeia(USP class Ⅵ) hammoho le tlhahlobo ea Pharmacopoeia ea Europe(EP 3.1.6) mme e ka sebelisoa e le morero oa bongaka. Sehlahisoa sena se boetse se fumane tumello ea Tsamaiso ea Lijo le Lithethefatsi tsa China 'me se ngolisitsoe lethathamong la FDA Drug Master File. (DMF No. 21499).