Tropicamide Standard

N-Ethyl-α-(hydroxymethyl)-N-(4-pyridinylmethyl)benzeneacetamide; N-Ethyl-2-phenyl-N-(4-pyridylmethyl)hydracrylamide; N-Ethyl-N-(γ-picolyl)tropamide; Ro 1-7683; Tropic Acid-N-ethyl-N-(γ-picolyl)amide; Tropicamide; Visumidriatic; N-Ethyl-3-hydroxy-2-phenyl-N-(pyridin-4-ylmethyl)propanamide; Benzeneacetamide, N-ethyl-a-(hydroxymethyl)-N-(4-pyridinylmethyl)-, (±)- (USP);