| abstract |
(57) [Summary] (Modified) [PROBLEMS] To provide a novel and useful odorant as an odorant to be used by being added to fuel hydrogen for a fuel cell using hydrogen as a fuel. An odorant used by adding to fuel hydrogen for a fuel cell using hydrogen as fuel, wherein the odorant comprises 1-pentene, 2-methyl 1-butene, arene, ethylallene, , 4-Pentadiene, 1-butyne, styrene, vinylacetylene, octene, decene, propylene, isobutene, diisbutylene, isoprene, cyclopentene, cyclopentadiene, 1,3-cyclohexadiene, 1-vinylcyclohexene-1,5-ethylidene- 2-norbornene, cyclohexene, 1-methylpyrrole, pyrazine, 2,3-dimethylpyrazine, 2-propylpyrazine, 2-picoline, α, p-dimethylstyrene, cumene, limonene, mesitylene, 2-methylnaphthalene, 3-methyl It comprises one or more substances selected from indole, myrcene, α-pinene and the like. |