Phenoxybenzamine . hydrochlorideCalmodulin inhibitor. Adrenergic receptor blocker.Irreversible calmodulin inhibitor. Cell permeable. Also known for its selective α-adrenergic blocking activity.Product SpecificationFormula: C18H22ClNO . HCl MW: 303.8 . 36.5 CAS: 63-92-3 MI: 14: 7256 RTECS: DP3750000 Purity: ≥95% (TLC) Appearance: White to off-white solid. Hazard: HARMFUL. MAY BE CARCINOGENIC. Solubility: Soluble in DMSO, 100% ethanol or methanol; insoluble in water. Long Term Storage: +4°C