I want to abbreviate pseudoisocytosine. Should it be "ΨiC" or "ΨiC"? I would usually write "sec-butyl", "tert-butyl", etc, and using "t-BuOH" for "t-butyl alcohol. I usually see, in respectable places, "i-PrOH" for isopropanol, and that what I have done up till now. The Wikipedia for chemical na...