saccharose vs sucrose

saccharose

noun
  • sugar, especially sucrose 

sucrose

noun
  • A disaccharide with formula C₁₂H₂₂O₁₁, consisting of two simple sugars, glucose and fructose; normal culinary sugar. 

How often have the words saccharose and sucrose occurred in a corpus of books? (source: Google Ngram Viewer )