CAS 21446-35-5 appears in our catalog under these names: Guattegaumerine, (1R)-1,2,3,4-Tetrahydro-1-[[4-[2-hydroxy-5-[[(1R)-1,2,3,4-tetrahydro-7-hydroxy-6-methoxy-2-methyl-1-isoquinolinyl]methyl]phenoxy]phenyl]methyl]-6-methoxy-2-methyl-7-isoquinolinol, ≥98%, ≥98%. Offered by: Biosynth, Chemat, MedChemExpress. Available pack sizes: 50mg, 25mg, 100mg, 5mg, 1 mg.