Modified primers are one of the characteristic service products of DIA-UP. The 100000 level clean room, a pharmaceutical level quality control standard, can be used in the field of molecular diagnosis, providing a variety of types of modified/labeled primers, including special modified bases, thio modified, phosphoric acid modified, m-arm Spacers, amino modified, thiol modified, biotin, Digoxin, fluorescein, quenching groups, electrochemical labeling, etc.