STN Registry File Compound Class Identifiers
Class Name
Code
Alloy
AYS
Coordination Compound
CCS
Registered Concept
CTS
Generic Registration
GRS
Incompletely Defined Substance
IDS
Manually Registered Substance
MAN
Mineral
MNS
Mixture
MXS
Polymer
PMS
Radical Ion
RIS
Ring Parent
RPS
