K-Blue® Select TMB Substrate

SKU No.  382175  |  Catalog No. 

  • Mid-level activity
  • Compliant with Annex XVII for REACH
  • Low background
  • Minimum shelf life of 24 months at 2–8°C
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Minimum quantity required: 1
This item must be ordered in multiples of one case. Quantity per case: 1

K-Blue Select is a one-bottle stabilized chromogenic substrate for use with horseradish peroxidase immunoassays. It contains both 3,3’,5,5’ tetramethylbenzidine (TMB) and hydrogen peroxide (H2O2) in a one-bottle format with long term stability. K-Blue Select offers mid-level activity range. K-Blue Select is compliant with Annex XVII for REACH and contains no hazardous substances at or above published reporting levels.

K-Blue Select develops a deep blue color in the presence of peroxidase labeled conjugate. K-Blue Select has been optimized for use with microwell applications, especially ELISA. It is not applicable for use with assays requiring a precipitating substrate.

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Intended UseResearch and manufacturing use only
Result TypeColorimetric
SensitivityMid-level activity
Storage ConditionsStable for a minimum of 24-months when stored between 2-8°C.
Wavelength650 nm or 450 nm with acid stop
Package Weight0.50 lb


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