Reply To: letter indicator or not?
Regarding 1-Methylcyclopropene, I kept searching for this myself and came across 12.3c in the Instruction Manual for Braille Transcribing Sixth Edition, 2013:
12.3c Numbers followed by words. When a number and a word are joined by a hyphen, as in 6-pack or 7-Up, a letter indicator is not required unless all of the letters of the word could be misread as a number.