Control Extracts (5ml)
For Diagnostic Use Only

$39.30$215.75

Negative Control Diagnostic Extract

This vial contains 5ml Negative Control Diluent, glycerin for diagnostic skin scratch testing.

Positive Control Diagnostic Extract

This vial contains 5ml Positive Control Histatrol® (histamine phosphate) glycerin 1.0 mg/ml for diagnostic skin scratch testing.

Fill your wells with the market's highest quality extracts by ALK.

Can be used with all sterile wells and sterile dipwells.

NOTE: Check concentrations and pricing before placing your order, extracts are a non-returnable item.

We offer the following Control Extracts:

  • Positive Control (Histatrol) – (Gly) 1.0 mg/ml in 5ml.
  • Negative Control (Diluent) – (Gly) in 5ml.
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