CAS 4702-34-5 appears in our catalog under these names: 1–Isochromanone, Isochroman-1-one, 1-Isochromanone, >98.0%(GC), Isochroman-1-one 95%, Isochroman-1-one, 95%, 95%. Offered by: GLPBio, Biosynth, TCI, Ambeed, Chemat. Available pack sizes: 10g, 25g, 5g, 100g, 250g, 1g, 250mg.