# Fields of Study in Chemistry [closed]

Is there a standard classification scheme for different areas of study and research for chemistry like mathematics has Mathematics Classification Scheme (MSC)?

Complementary to this, for long, there have been attempts to classify knowledge into divisions. This is reflected by the labels (not only scientific) libraries put on their media (books, journals, etc.). One of them is the system established by the Library of Congress with starting letters QD as root for chemistry within science (cf. entry wikipedia, or entry LOC). An example for this may be the record for Chemistry of the Elements by Greenwood and Earnshaw here and other topically related entries of shelf QD466.
An other attempt are IPC as the international and CPC as the cooperative patent classification (USPTO and EPO) assigning patents related to chemistry (and metallurgy) to class C (entry EPO/espacenet). This classification however may be less helpful than a library catalogue à la LOC since patents may be filed in more than one (sub-class) at once. Equally, you may find multiple patents related e.g., to keyword thiophene in classes other than C, too.