5,10,15,20-Tetra(4-pyridyl)-21H,23H-porphine的分子量是什么?
5,10,15,20-Tetra(4-pyridyl)-21H,23H-porphine的分子量是618.7
15 0
N-甲基吡咯烷酮的折光率是MAX ABSORPTION (METHANOL): 205 NM (LOG E= 3.46); INDEX OF REFRACTION: 1.4684 AT 20 °C/D; SADTLER REFERENCE NUMBER: 6528 (IR, PRISM); 116 (VARIAN, NMR)
6 0