How are SignalFlex™ conjugates different from custom-ordered antibody conjugates?

Both SignalFlex and custom-ordered conjugates are made after purchase order and are manufactured using the same high-quality standards and methods as off-the-shelf CST conjugated antibodies. But every SignalFlex conjugate is manufactured to the same specifications: 

• 200 μg/ml concentration, 

• 50 μg size,

• In PBS (pH 7.2) with > 0.1% sodium azide, and 2 mg/ml BSA,

• With a pre-selected DOL (based on testing and optimization conditions for each specific dye). 

Similar to other off-the-shelf CST catalog reagents, SignalFlex conjugates can be ordered online using standard methods. Custom-ordered conjugates are made according to your specific requirements (concentration, buffer, degree-of-labeling (DOL), etc.) and must be ordered with a quote and the assistance of your local account manager. Before ordering a custom conjugated antibody, be sure to see our tiered service options and learn more about our Custom Conjugation & Labeling Services.

 

Researchers need to perform individual application testing to determine the optimal antibody concentration and dilution in their assay when using SignalFlex and custom-ordered conjugates. For custom-ordered conjugates, application testing before shipment may be available for limited services and applications (for an additional cost).  

 

Last updated: August 3, 2025