Englishfor English speakers
(5R,6S)-7,8-didehydro-4,5-époxy-3-méthoxy-N-méthylmorphinan-6-ol
r
Noun
—
The eighteenth (18th) letter of the English alphabet.
"r" comes after "q" and before "s"
s
Noun
—
The nineteenth (19th) letter of the alphabet.
"s" comes after "r" and before "t"
s
Abbreviation
—
S is short for south or southern.
n
Noun
—
The fourteenth (14th) letter of the alphabet.
"n" comes after "m" and before "o"