50-60-2 65-28-1 EINECS 200-604-6 Phenol, 3-(((4,5-dihydro-1H-imidazol-2-yl)methyl)(4-methylphenyl)amino)-, monomethanesulfonate (salt) Phenol, m-(N-(2-imidazolin-2-ylmethyl)-p-toluidino)-, monomethanesulfonate (salt) Phentolamine mesilate Phentolamine mesylate Phentolamine mesylate [USAN] Phentolamine methanesulfonate Phentolamine methanesulphonate Regitin methanesulphonate Regitine mesylate Regitine methanesulfonate m-(N-(2-Imidazolin-2-ylmethyl)-p-toluidino)phenol monomethanesulfonate (salt)