Amyloid beta-Protein^ Amyloid beta-Protein (1-42 residue), Formula: C203H311N55O60S, CAS: 107761-42-2, Sequence of H-1368 corresponds to the human, bovine, canine, feline, ovine, guinea pig and rabbit amyloid beta 42 peptide. Used to detect multimers in the cerebrospinal fluid.-á