| abstract |
To provide a specific oxalic acid derivative and a mixture thereof capable of exerting a physiological cooling action on the skin and / or mucous membrane. (A) a compound represented by the following formula (I), or (b) one, two or more of the compounds represented by the following formula (I), or (c) A mixture comprising two or more compounds represented by the following formula (I): Here, in each case, the following definitions apply: B means a specific hydrocarbon residue: X means NR 1 R 2 or SR 3 . (R 1 , R 2 and R 3 are selected from the group consisting of a hydrogen atom and an organic residue. In some cases, R 1 and R 2 in NR 1 R 2 are bonded to each other to form a ring. May be.) [Selection figure] None |