“…Berberine. Mp 144.3-146.1°C (melting point of reference 146°C [ 19 ]) 1 H NMR (CD 3 OD, 400 MHz), δ ppm; 3.26 (t, J = 5.6 Hz, H-5), 4.12 (s, 9-OCH 3 ), 4.35 (s, 10-OCH 3 ), 4.95 (t, J = 5.6 Hz, H-6), 6.13 (s, 3-OCH 2 O), 6.89 (s, H-4), 7.45 (s, H-1), 7.95 (d, J = 7.98, H-12), 8.00 (d, J = 7.98, H-11), 8.61 (s, H-13), 9.78 (s, H-8). 13 C NMR (CD 3 OD, 100 MHz), δ ppm; 28.2 (C-5), 57.1 (C-6), 57.6 (9-OCH 3 ), 62.5 (10-OCH 3 ), 103.6 (2,3-OCH 2 O), 106.5 (C-1), 109.3 (C-4), 121.5 (C-13), 121.9 (C-4a), 123.3 (C-12a), 124.5 (C-12), 128 (C-11), 131.9 (C-14a), 135.1 (C-8a), 139.6 (C-14), 145.7 (C-9), 146.4 (C-8), 149.9 (C-3), 152 (C-2 and C-10).…”