Y-27632, Dihydrocholride. A Rho kinase (ROCK) inhibitor, Synonyms: trans-4-[(1R)-1-Aminoethyl]-N-4-pyridinylcyclohexanecar boxamide dihydrochloride, CAS Number: 146986-50-7, Purity: G99% by High-performance liquid chromatography, Molecular Formula: C1GH21NGO.2HCl, 5mg.