| 摘要 |
A general-purpose organic rust inhibitor which can effectively prevent corrosion of metals, and which comprising a compound represented by the general formula (1): <IMAGE> (1) wherein, in the above general formula (1), R1 represents a fluorine-substituted alkyl group; R2 is a hydrogen atom or a group defined for R1 or an organic residue; R3 and R4 are hydrogen or an ionizable group at least for either of the two, or an ionizable group in which R3 and R4 are connected to each other.
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