Spin delocalization substituent constant
Substituent chemical shift (SCS) or substituent effect
automatic constant temperature constant
constant speed constant frequency
Constant Temperature and Constant Humidity
constant temperature and constant humidity system
constant voltage and constant frequency
Constant Voltage Constant Current CVCC
Constant voltage or constant current type
2-(p-aminophenyl)-6-substituent-benzothiazole
3-Substituent-5-aryloxazolidin-4-ones
electron withdrawing substituent