A (1'R,6R,6aR,7R,13S,14S,16R)-6',8,14-Trihydroxy-7',9-dimethoxy-4,10,23-trimethyl-19-oxo-3',4',6,7,12,13,14,16-octahydrospiro(6,16-(epithiopropanooxymethano)-7,13-imino-6aH-1,3-dioxolo(7,8)isoquino(3,2-b)(3)benzazocine-20,1'(2& written confirmation ((1'R,6R,6aR,7R,13S,14S,16R)-6',8,14-Trihydroxy-7',9-dimethoxy-4,10,23-trimethyl-19-oxo-3',4',6,7,12,13,14,16-octahydrospiro(6,16-(epithiopropanooxymethano)-7,13-imino-6aH-1,3-dioxolo(7,8)isoquino(3,2-b)(3)benzazocine-20,1'(2& WC) is an official document issued by a regulatory agency to a (1'R,6R,6aR,7R,13S,14S,16R)-6',8,14-Trihydroxy-7',9-dimethoxy-4,10,23-trimethyl-19-oxo-3',4',6,7,12,13,14,16-octahydrospiro(6,16-(epithiopropanooxymethano)-7,13-imino-6aH-1,3-dioxolo(7,8)isoquino(3,2-b)(3)benzazocine-20,1'(2& manufacturer, verifying that the manufacturing facility of a (1'R,6R,6aR,7R,13S,14S,16R)-6',8,14-Trihydroxy-7',9-dimethoxy-4,10,23-trimethyl-19-oxo-3',4',6,7,12,13,14,16-octahydrospiro(6,16-(epithiopropanooxymethano)-7,13-imino-6aH-1,3-dioxolo(7,8)isoquino(3,2-b)(3)benzazocine-20,1'(2& active pharmaceutical ingredient (API) adheres to the Good Manufacturing Practices (GMP) regulations of the importing country. When exporting (1'R,6R,6aR,7R,13S,14S,16R)-6',8,14-Trihydroxy-7',9-dimethoxy-4,10,23-trimethyl-19-oxo-3',4',6,7,12,13,14,16-octahydrospiro(6,16-(epithiopropanooxymethano)-7,13-imino-6aH-1,3-dioxolo(7,8)isoquino(3,2-b)(3)benzazocine-20,1'(2& APIs or (1'R,6R,6aR,7R,13S,14S,16R)-6',8,14-Trihydroxy-7',9-dimethoxy-4,10,23-trimethyl-19-oxo-3',4',6,7,12,13,14,16-octahydrospiro(6,16-(epithiopropanooxymethano)-7,13-imino-6aH-1,3-dioxolo(7,8)isoquino(3,2-b)(3)benzazocine-20,1'(2& finished pharmaceutical products to another nation, regulatory agencies frequently require a (1'R,6R,6aR,7R,13S,14S,16R)-6',8,14-Trihydroxy-7',9-dimethoxy-4,10,23-trimethyl-19-oxo-3',4',6,7,12,13,14,16-octahydrospiro(6,16-(epithiopropanooxymethano)-7,13-imino-6aH-1,3-dioxolo(7,8)isoquino(3,2-b)(3)benzazocine-20,1'(2& WC (written confirmation) as part of the regulatory process.
click here to find a list of (1'R,6R,6aR,7R,13S,14S,16R)-6',8,14-Trihydroxy-7',9-dimethoxy-4,10,23-trimethyl-19-oxo-3',4',6,7,12,13,14,16-octahydrospiro(6,16-(epithiopropanooxymethano)-7,13-imino-6aH-1,3-dioxolo(7,8)isoquino(3,2-b)(3)benzazocine-20,1'(2& suppliers with Written Confirmation (WC) on PharmaCompass.