A compressor containing an unstable active oxygen component and a sugar coating containing a basic coating material as a sugar and binder, The part of it that it contains at the beginning of its activity is covered with sugar. The alcohol of sugar was selected from eritritol, manitol, xilitol and sorbitol;The active component of the polymer is (R) - 5,6-methoxyethane-2 - [2,2,4,6,7-pentamethyl-3 - (4-methylphenyl) - 2,3-dihydro-1-benzofuran-5-il] isoprene. This compressor is useful and has an unstable active ingredient, oxygen, because it has an oxidation inhibiting effect
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