CAS 67845-90-3 appears in our catalog under these names: 2,2,6,6-Tetramethyl-4-cyanopiperidine, 95%, 2，2，6，6–Tetramethyl–4–piperidinecarbonitrile, 2,2,6,6-Tetramethyl-4-cyanopiperidine, 95%, 95%, 4-CYANO-2,2,6,6-TETRAMETHYLPIPERIDINE, 95%. Offered by: Combi-blocks, GLPBio, Chemat, Fluorochem. Available pack sizes: 250mg, 1g, 100mg, 500mg.