Vitamin K3 Menadione Dimethylpyrimidinol Bisulfite (MPB)

Menadione dimethylpyrimidinol bisulfite (CAS 14451-99-1), commercially known as Hetrazeen, is a stabilized, water-soluble form of menadione used as a source of vitamin K activity in animal nutrition and pharmaceutical applications.

Where is Vitamin K3 Menadione Dimethylpyrimidinol Bisulfite (MPB) used?

• Animal feed: incorporated into premixes and complete feeds for vitamin K supplementation in poultry, swine, and aquaculture diets
• Pharmaceutical formulators use it as an active ingredient in veterinary preparations where a water-dispersible vitamin K source is required.
• Nutritional supplements: precise dosing in liquid and powder formats where free menadione would present stability challenges
• Antioxidant and preservation profile supports evaluation in formulations requiring oxidative stability alongside vitamin activity

Good to know: Its bisulfite complex form improves handling and formulation compatibility compared to free menadione.

Commercial specifications

• Quality assessed against established feed additive standards
• Bulk supply standard for premix operations; smaller quantities for research applications