CAS 1262670-81-4 appears in our catalog under these names: Xanthine-13C15N2, Xanthine–13C,15N2, Xanthine-13C,15N2, 98%, 98%, Xanthine-13C,15N2, 98.0%. Offered by: TRC, GLPBio, Chemat, MedChemExpress. Available pack sizes: 10mg, 1mg, 10 mg, 1 mg, 5 mg.