Menadione Sodium Bisulfite (Vitamin K3)
CAS Number: 130-37-0
Menadione Sodium Bisulfite (MSB) is the most widely used water-soluble vitamin K3 source in animal feed, essential for blood coagulation, bone metabolism, and prevention of haemorrhagic syndrome in poultry and swine. The sodium bisulfite complex provides superior water solubility and stability compared to menadione alone. Our feed-grade MSB meets pharmacopoeial standards with consistent potency.
Technical Specifications
| appearance | White to light yellow crystalline powder |
| purity (%) | ≥50.0 (as menadione equivalent) |
| pH (1% solution) | 3.0–5.0 |
| heavy metals (ppm) | ≤10 |
| loss on drying (%) | ≤1.0 |
Applications
- Poultry premixes to prevent haemorrhagic syndrome and improve clotting
- Swine feeds to support bone and cartilage development
- Water-soluble vitamin supplements for drinking water delivery
- Medicated feed formulations where rapid vitamin K correction needed
- Aquafeed for fish species susceptible to vitamin K deficiency
Key Features
- Water-soluble complex enabling drinking water vitamin K delivery
- Greater stability than plain menadione in premix matrices
- Proven efficacy in preventing coccidiosis-induced haemorrhage
- Cost-effective vitamin K source with globally accepted regulatory status