Vitamin B6 (Pyridoxal-5-phosphate)
Miasto: LV, Marupe
Please avoid sudden changes in temperature and humidity, as they may affect the condition of derivative ingredients and tablets.
The shelf life begins from the date of manufacture at the factory.
Taking into account logistical and transportation stages, the remaining shelf life of the product is always shorter than the full shelf life.
We ship products to our customers with a remaining shelf life of no less than 70%.
Physical & Chemical Characteristics
Analysis Item | Specification | Result |
Description | slightly yellow or off-white powder | conforms |
Identification | The retention time of the major peak of product corresponds to that of the standard | conforms |
Solubility | Very slightly soluble in water, soluble in alkali-OH Soln. | conforms |
Melting Point | 140–145°C | 144°C |
Water by KF | ≤10.0% | 8.2% |
pH (in 0.25% water) | 2.6–3.0 | 2.8 |
Particle size (Mesh) | ≥90% through 30 mesh | conforms |
Free Vitamin B6 | ≤0.05% | 0.03% |
Heavy Metals
Analysis Item | Specification | Result |
Heavy Metals | ≤10 ppm | <10 ppm |
Cadmium | ≤0.5 ppm | 0.063 ppm |
Arsenic | ≤1.5 ppm | <0.01 ppm |
Lead | ≤0.5 ppm | <0.02 ppm |
Mercury | ≤0.1 ppm | <0.005 ppm |
Physical Properties
Analysis Item | Specification | Result |
Bulk Density | — | 0.39 g/ml |
Tapped Density | — | 0.68 g/ml |
Residual Solvents
Analysis Item | Specification | Result |
Toluene | ≤890 ppm | 2 ppm |
Ethanol | ≤5000 ppm | 32 ppm |
Assay
Analysis Item | Specification | Result |
Assay (as C₈H₁₀NO₆P, on dry basis) | 98.5–101.0% | 99.0% |
Microbiological Tests
Analysis Item | Specification | Result |
Total Plate Count | ≤1000 CFU/g | <100 CFU/g |
Yeast & Mold | ≤100 CFU/g | <10 CFU/g |
Salmonella | Negative | Negative |
E. Coli | Negative | Negative |
Staphylococcus Aureus | Negative | Negative |
Conclusion: The product conforms to the enterprise standard.