CAS 51998-05-1 appears in our catalog under these names: 2-(Isocyanatomethyl)tetrahydrofuran, 95%, 2-(Isocyanatomethyl)tetrahydrofuran, 95+%, Tetrahydrofurfuryl Isocyanate. Offered by: Combi-blocks, AmBeed, TRC. Available pack sizes: 250mg, 10g, 5g, 25g, 1g.