CAS 157592-43-3 appears in our catalog under these names: Cyclopentyl 2–pyridyl ketone, 2-Cyclopentanecarbonylpyridine, Cyclopentyl 2-pyridyl ketone 98%, 2-Cyclopentanecarbonylpyridine, 98%, 98%, Cyclopentyl 2-pyridyl ketone, 98%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 250mg.