Tropicamide Description A specific muscarinic (M4) antagonist. Specifications Cas No. 1508-75-4 Product ID T7158 Product Name Tropicamide Chemical Name N-Ethyl-a-(hydroxymethyl)-N-(4-pyridinyl methyl)- benzeneacetamide Synonym Mydriacyl; Mydriaticum Formula Wt. 284.35 Melting Point 96oC-97oC Purity ≥98% Solubility Soluble in water or ethanol Store Temp +4oC References Blessel K W et al. Anal Profiles Drug Subs. 3:565-80 (1974).