2-((Methyldithio)methyl)furan 57500-00-2 60681-93-8 EINECS 260-773-7 FEMA No. 3362 Furan, 2-((methyldithio)methyl)- Furfuryl methyl disulfide Methyl 2-furylmethyl disulfide Methyl furfuryl disulfide