CAS 153474-35-2 appears in our catalog under these names: Propanoic-13C3 Acid, >95% (GC), PROPIONIC ACID-13C3, 99 ATOM % 13C, Propanoic acid-13C3. Offered by: TRC, Sigma-Aldrich, MedChemExpress. Available pack sizes: 100mg, 50mg, 1G, 50 mg, 25 mg, 5 mg, 100 mg, 10 mg.