... 3-Toluenediamine: CAS:2687-25-4 40% 1. Chemical Name: OTD, OTDA, Ortho Toluenediamine2. UN NO.: 30773. Normalized Isomer ration: ... in order to corrosion inhibitor tolyltriazole, antioxidant MMB etc.OTD as a polyether initiator made the polyether, The foam ... low-temperature performance. Besides. polyether which is made of OTD have better compatibility with cyclopentane.It can substitute for o ...