Protex 6L

Protex 6L

This enzyme from Bacillus licheniformis was sold originally by Genencor under the brand name Protex 6L. Its name has been changed to Multifect PR 6L but the enzyme remains unchanged. Furthermore Genencor International is now part of IFF Biosciences.


Vitamin determination

A diagnostic application is the determination of β-Carotene. For a discription see the article "Method for the Determination of β-Carotene in Supplements and Raw Materials by Reversed-Phase Liquid Chromatography: Single Laboratory Validation" by Joseph Schierle, Bernd Pietsch, Alan Ceresa, and Christian Fizet published in J AOAC Int. 2004; 87(5): 1070–1082.


ChiralVision supplies R&D quantities of Protex 6L.

Product name: CV-P6L



135 euro / 250 ml

295 euro / liter

Shipping not included, will be quoted separately.


Please send orders and inquiries to:

For other none-immobilized DuPont Industrial Biosciences proteases click here.

For immobilized formulations: click here.

Order Protex 6L (Multifect PR 6L)

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Other DuPont Industrial Biosciences proteases (not immobilized):

Product nr. DuPont Industrial Biosciences proteases (not immobilized)
CV-P6L Protease from Bacillus licheniformis (Protex 6L, Multifect PR 6L). Liquid, activity: 2440 ELU / ml.
CV-P7L Protease from Bacillus amyloliquefaciens (Protex 7L, Multifect PR 7L). Liquid, activity: 100 ELU / ml.
CV-P14L Protease from Geobacillus sp. (Thermolysin, Protex 14L, PROTEINASE T). Liquid, activity: 5 ELU / ml.
CV-P15L Protease from Trichoderma reesei (Protex 15L, Multifect PR 15L). Liquid, activity: 5 ELU / ml.
CV-P30L Protease from Bacillus subtilis (Protex 30L, Multifect PR 30L). Liquid, activity: 585 ELU / ml.
CV-P40L Protease from Bacillus subtilis (Protex 40L, OPTIMASE PR 40L). Liquid, activity: 1630 ELU / ml.
CV-P50FP Protease from Aspergillus oryzae var. (Protex 50 FP, Multifect PR 50G). Powder, activity: 20 ELU / g.
CV-P51FP Protease from Aspergillus oryzae (Protex 51 FP, Multifect PR 51G). Powder, activity: 570 ELU / g.
CV-P89L Protease from Bacillus subtilis (Protex 89L, OPTIMASE PR 89L). Liquid, Activity: 435 ELU / ml.
CV-GEN-900 - Kit with 9 proteases (non-immobilized) 20 ml or 5 g each
  Protex, Multifect and Optimase are registered tradenames of DuPont Industrial Biosciences