CAS 17057-91-9 appears in our catalog under these names: 2，4，5–Trimethylnaphthalene, 2,4,5-Trimethylnaphthalene, >98.0%(GC), 2,4,5-Trimethylnaphthalene, 1,3,8-Trimethylnaphthalene, ≥98%. Offered by: GLPBio, TCI, Chemat, Fluorochem. Available pack sizes: 10mg, 100mg.