Aspects of the present disclosure include systems for use in preparing a labelled biomolecule reagent. Systems according to certain embodiments include an input manager for receiving a request for a labelled biomolecule reagent, a memory for storing a dataset having a plurality of labelled biomolecule reagent storage identifiers, a processing module communicatively coupled to the memory and configured to identify one or more labelled biomolecule reagent storage identifiers from the dataset that corresponds to the labelled biomolecule reagent request and an output manager for providing the one or more identified labelled biomolecule reagent storage identifiers. A reagent preparatory apparatus for preparing the labelled biomolecule reagent from an activated biomolecule and activated label is also described. Methods for communicating and receiving a labelled biomolecule reagent request and preparing the subject labelled biomolecule reagents are also provided.