4-Oxazolidinone, 5-((3-ethyl-2(3H)-benzoxazolylidene)ethylidene)-3-heptyl-2-thioxo- 5-((3-Ethyl-(3H)-benzoxazol-2-ylidene)ethylidene)-3-heptyl-2-thioxooxazolidine-4-one 63123-23-9 EINECS 263-872-3