Promega Corporation

CellTiter-Blue® Cell Viability Assay Technical Bulletin

Literature # TB317

The CellTiter-Blue® Cell Viability Assay provides a homogeneous, fluorometric method for estimating the number of viable cells present in multiwell plates. The simple protocol involves adding a single reagent directly to cells cultured in serum-supplemented medium. The CellTiter-Blue® Assay is based on the ability of living cells to convert a redox dye (resazurin) into a fluorescent end product (resorufin). Viable cells retain the ability to reduce resazurin into resorufin. Nonviable cells rapidly lose metabolic capacity, do not reduce the indicator dye, and thus do not generate a fluorescent signal.

Printed in USA. Revised 6/09.

PDF Icon Complete Protocol PDF (334kb)

  • Warning
  • It appears that you have Javascript disabled. Our website requires Javascript to function correctly. Please enable Javascript to experience our website.

Scientists at Your Service

We offer a range of services to help you succeed using Promega technologies. From product training to set up of automated systems and development of custom applications—our scientific support goes beyond the basics.

Ask us! We are here to help you.

Click Here for Technical Questions and Ordering Support »