Pyridoxal-5-phosphate (PLP) is the active form of vitamin B6, and it is a coenzyme form, which means that the body can absorb it directly without conversion.So, P5P is generally better than regular vitamin B6. It is involved in the synthesis of amino acids and neurotransmitters such as serotonin, GABA, dopamine, and norepinephrine.
Item | Specification | Result | Analysis Method |
Description | slightly yellow or off-white powder | conforms | Visual |
Identification | The retention time of the major peak of product corresponds to that of the standard | conforms | ChP <0512> |
Solubility | Very slightly soluble in water, soluble in alkali-OH Soln. | conforms | ChP General Notices |
Melting point | 140-145℃ | 143℃ | ChP<0612> |
Water by KF | ≤10.0% | 8.30% | ChP<0832> |
Heavy metals | ≤10ppm | <10ppm | ChP<0821> |
Cadmium | ≤0.5ppm | 0.075ppm | ChP<2321> |
Arsenic | ≤1.5ppm | <0.01ppm | ChP<2321> |
Lead | ≤0.5ppm | <0.02ppm | ChP<2321> |
Mercury | ≤0.1ppm | <0.005ppm | ChP<2321> |
pH(in 0.25% water) | 2.6-3.0 | 2.8 | ChP<0631> |
Particle size (Mesh) | ≥90% through 30 mesh | conforms | ChP<0982> |
B6 Free Vitamin B6 | ≤0.05% | 0.03% | ChP<0512> |
Bulk density | ___ | 0.40g/ml | USP<616> |
Tapped density | ___ | 0.67g/ml | USP<616> |
Toluene | ≤890ppm | 15ppm | ChP<0861> |
Ethanol | ≤5000ppm | 32ppm | ChP<0861> |
Assay(as C8H10NO6P, on dry basis) | 98.5-101.0% | 99.10% | ChP<0512> |
Total Plate Count | ≤1000CFU/g | <100CFU/g | ChP<1105> |
Yeast & Mold | ≤100CFU/g | <10CFU/g | ChP<1105> |
Salmonella | Negative | Negative | ChP<1106> |
E.Coli | Negative | Negative | ChP<1106> |
Staphylococcus Aureus | Negative | Negative | ChP<1106> |
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