| Fastest live assay | Most widely used live assay | Economical live assay | Most economical | Water-soluble alternative to MTT | |
|---|---|---|---|---|---|
| Plate-based Product Comparison | PrestoBlue® | alamarBlue® | Resazurin Powder | MTT Powder | XTT powder |
| Assay Type | Resazurin based | Resazurin based | Resazurin based | Tetrazolium based | Tetrazolium based |
| Workflow | Single addition | Single addition | Weigh powder, prepare solution + single addition | Weigh powder, prepare solutions + two additions | Weigh powder, prepare solutions + two additions |
| Incubation time | > = 10 minutes | 1-4 hours | 4 hrs | >= 2 hours | 2-4 hours |
| Detection Method | Absorbance or Fluorescence | Absorbance or Fluorescence | Absorbance or Fluorescence | Absorbance | Absorbance |
| Cell Format | Live | Live | Live | Lysis/Endpoint | Lysis/Endpoint |
| Compatible with Phenol Red |  | | | |
|
| Sensitivity | 12 cells/well | 50 cells/well | 100 cells/well | 1,000 cells/well | 1,000 cells/well |
| Instrument | Spectro- photometer, Microplate Reader | Spectro- photometer, Microplate Reader | Spectro- photometer, Microplate Reader | Spectro- photometer, Microplate Reader | Spectro- photometer, Microplate Reader |
| Price per 96-well plate | $$ | $$ | $ | $ | $$ |
| Order now | Order now | Order now | Order now | Order now |
alamarBlue® is a registered trademark of Trek Diagnostic Systems, Inc.
