The difference between Diastereoisomer and S-
Diastereoisomer is also noun with the meaning: a stereoisomer having multiple chiral centres.
S- is also prefix with the meaning: subatomic particles predicted by supersymmetry.
check bellow for the other definitions of Diastereoisomer and S-
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Diastereoisomer as a noun (chemistry):
A stereoisomer having multiple chiral centres; a diastereoisomer cannot normally be superimposed on the mirror image of another.