Searching in a library catalog requires looking for broader topics such as food chemistry or environmental chemistry rather than the more specific phenolic antioxidants in grapefruit or GC/MS in pesticide chemistry.
PLEASE NOTE: With the permanent closure of the Physical Sciences and Engineering Library during COVID time, all chemistry print books and other materials have been re-located to four locations: Shields Library sciences 3rd floor; Shields Library 2nd floor Reference collection (REFERENCE titles); temporary storage (at Carlson Health Sciences Library); or the Northern UC libraries storage facility, NRLF (Northern Regional Library Facility). The UCD Library Catalog notes which of these four locations your print chemistry materials may be found at.
LIBRARY OF CONGRESS CLASSIFICATION OUTLINE
CLASS Q - SCIENCE
Subclass QD Chemistry
QD1-65 Chemistry, General - Including alchemy
QD71-142 Analytical chemistry
QD146-197 Inorganic chemistry
QD241-441 Organic chemistry
QD450-801 Physical and theoretical chemistry
QD625-655 Radiation chemistry