OXIDATION INHIBITOR, OXIDATION INHIBITOR COMPOSITION, OXIDATION INHIBITOR FOR VACUUM APPARATUS, METHOD FOR MANUFACTURING ORGANIC EL ELEMENT, ORGANIC EL DISPLAY PANEL, ORGANIC EL DISPLAY APPARATUS AND ORGANIC EL EMISSION APPARATUS

摘要

PROBLEM TO BE SOLVED: To suppress the adhesion of impurities to an organic membrane material in a vacuum state to the utmost.SOLUTION: A vacuum device comprising a vacuum pump and a vacuum chamber connected thereto uses an oxidation inhibitor containing an aromatic secondary amine derivative represented by formula (1) wherein at least one of R-Ris represented by formula (2) and the others are each a substituent wherein the number of atoms of a main chain is 3 or below.