methymin c Fundamentals Explained
S? d?ng cho ng??i b?nh b? ung th? ?ang ?i?u tr? b?ng hóa ch?t ho?c phóng x?.
The 1st compound is a standard twoº-amine, and the three beside it are characterised by various levels of nitrogen electron pair delocalization. The last two compounds (shaded blue) clearly show the af