Methylenebis(dibutyldithiocarbamate) is the organosulfur compound with the formula CH2(SC(S)NBu2)2 (Bu = C4H9). It is a derivative of dibutyldithiocarbamate that is used as an additive to various lubricants, both as an antioxidant and a preservative for metal surfaces. It is prepared by alkylation of the dithiocarbamate with dichloromethane. Although it is described as colored, simple esters of dithiocarbamate are typically colorless.
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