A method for producing at least one N-substituted carbamic acid-O-aryl ester wherein the N-substituted carbamic acid-O-aryl ester refers to an N-substituted carbamic acid ester in which oxygen atoms of the carbamic acid group (-NHCOO-) are bonded to an aromatic ring derived from a compound having an ureido group represented by the following formula and an aromatic hydroxy composition containing at least one type of aromatic hydroxy compound represented by the following formula, the method comprising the step of carrying out esterification or esterification and transesterification from the compound having the ureido group and the aromatic hydroxy composition: wherein R 1 represents an organic group containing an integral number of carbon atoms within a range of from 1 to 85, that is substituted by number a of ureido group(s), and the a represents an integer of from 1 to 10, and ring A represents an organic group, which contains an aromatic group substituted by number b of hydroxy group(s) at arbitrary location(s) that maintain aromatic properties, and which contains an integral number of carbon atoms within a range of from 6 to 50, may be a single or multiple heterocylic ring, and is substituted by at least one substituent, and the b represents an integer of from 1 to 6; wherein the at least one substituent is selected from (i) a hydrogen atom, (ii) a group composed of carbon atoms and hydrogen atoms which may also form a ring structure by bonding with ring A, (iii) a group composed of carbon atoms, hydrogen atoms and oxygen atoms, but excluding a carbonyl group, an ester group, a terminal methine group and an alcoholic OH group, or a carboxyl group, A0784ABP0227-PCT (iv) a halogen atom, and (v) a group composed of atoms selected from carbon atoms, hydrogen atoms, oxygen atoms, nitrogen atoms, sulfur atoms and halogen atoms but excluding a carbonyl group, an ester group, a terminal methine group and an alcoholic OH group, a carboxyl group, a NH 2 group, a NH group, a NOH group, a SH group, a SO 3 H group or a SOH groups. R 1 represents an organic group containing an integral number of carbon atoms within a range of from 1 to 85, that is substituted by number a of ureido group(s), and the a represents an integer of from 1 to 10, and ring A represents an organic group, which contains an aromatic group substituted by number b of hydroxy group(s) at arbitrary location(s) that maintain aromatic properties, and which contains an integral number of carbon atoms within a range of from 6 to 50, may be a single or multiple heterocylic ring, and is substituted by at least one substituent, and the b represents an integer of from 1 to 6; wherein the at least one substituent is selected from (i) a hydrogen atom, (ii) a group composed of carbon atoms and hydrogen atoms which may also form a ring structure by bonding with ring A, (iii) a group composed of carbon atoms, hydrogen atoms and oxygen atoms, but excluding a carbonyl group, an ester group, a terminal methine group and an alcoholic OH group, or a carboxyl group, A0784ABP0227-PCT (iv) a halogen atom, and (v) a group composed of atoms selected from carbon atoms, hydrogen atoms, oxygen atoms, nitrogen atoms, sulfur atoms and halogen atoms but excluding a carbonyl group, an ester group, a terminal methine group and an alcoholic OH group, a carboxyl group, a NH 2 group, a NH group, a NOH group, a SH group, a SO 3 H group or a SOH groups. (i) a hydrogen atom, (ii) a group composed of carbon atoms and hydrogen atoms which may also form a ring structure by bonding with ring A, (iii) a group composed of carbon atoms, hydrogen atoms and oxygen atoms, but excluding a carbonyl group, an ester group, a terminal methine group and an alcoholic OH group, or a carboxyl group, A0784ABP0227-PCT (iv) a halogen atom, and (v) a group composed of atoms selected from carbon atoms, hydrogen atoms, oxygen atoms, nitrogen atoms, sulfur atoms and halogen atoms but excluding a carbonyl group, an ester group, a terminal methine group and an alcoholic OH group, a carboxyl group, a NH 2 group, a NH group, a NOH group, a SH group, a SO 3 H group or a SOH groups.