CAS 76-66-4 appears in our catalog under these names: Rhynchophylline, >95% (HPLC), Rhynchophylline, Rhynchophylline/ 99.44% (existing batch purity), Rhynchophylline, >98.0%(HPLC), Rhynchophylline - Bio-X â„¢. Offered by: TRC, GLPBio, TargetMol, TCI, Biosynth. Available pack sizes: 100mg, 10mg, 25mg, 20mg, 5mg, 50mg, 250mg, 500mg.