CAS 41468-25-1


Pyridoxal 5′-phosphate Details

Chemical Name: Pyridoxal 5′-phosphate

CAS No.: 41468-25-1

EINECS No.:41468-25-1

Molecular Formula: C8H12NO7P

Formula Weight: 265.16

Pyridoxal 5′-phosphate Typical Properties

Item Specification Result Analysis Method


slightly yellow or off-white powder  






The retention time of the major peak of product corresponds to that of the standard  



CP <0512>

Solubility Very slightly soluble in water, soluble in alkali-OH Soln.  


CP General Notices
Melting point 140~145℃ 140℃ CP<0612>
Water by KF ≤ 10.0% 8.4% CP<0832>
Heavy metals ≤ 10ppm < 10ppm CP<0821>
Cadmium ≤ 0.5ppm < 0.01ppm CP<0412>
Arsenic ≤ 1.5ppm < 0.040ppm CP<0412>
Lead ≤ 0.5ppm < 0.1ppm CP<0412>
Mercury ≤ 0.1ppm < 0.010ppm CP<0412>
pH(in 0.25% water) 2.6~3.0 2.9 CP<0631>
Particle size (Mesh) 100% through 30 mesh conforms CP<0982>
Free Vitamin B6 ≤0.05% Not Detected CP<0512>
Item Specification Result Analysis Method
Bulk density   0.31g/ml USP<616>
Tapped density   0.58g/ml USP<616>

Residual Solvents






Complies to USP38







13ppm 49ppm



CP<0861> CP<0861>

Assay 98.5~101.0% 99.1% CP<0512>
Microbe. Test:


Total Plate Count Yeast & Mold Salmonella



Staphylococcus Aureus











≤100CFU/g <10CFU/g CP<1105>
Negative Negative CP<1106>
Negative Negative CP<1106>




Conclusion: The product conform to the enterprise standard.


What is Pyridoxal 5′-phosphate ?

Pyridoxal phosphate (PLP) is an active form of vitamin B6. This vitamin mainly includes three natural organic compounds: pyridoxal, pyridoxamine and pyridoxine.

Several reactions in which pyridoxal phosphate is catalyzed are:
1. Amino function.
2. α-decarboxylation.
3. β-decarboxylation.
4. β-elimination.
5. γ-elimination.
6. Racemic effect.

Pyridoxal 5′-phosphate Applications

Pyridoxal -5- phosphoric acid mainly involves the metabolism of amino acids and other nitrogen compounds:

1) in the liver, pyridoxal -5- phosphoric acid is necessary for the production of amino acids through glucose, which ACTS as a coenzyme of aminotransferase.Pyridoxal 5-phosphate is also required in the liver and muscles to obtain stored glycogen for glucose production and to synthesize niacin from the amino acid tryptophan.

2) in red blood cells, pyridoxal 5-phosphate is required for hemoglobin synthesis and for the regulation of oxygen affinity.In addition, cellular receptivity to steroid hormones is affected by pyridoxal -5- phosphate.

3) in the nervous system, pyridoxal 5-phosphate is required to synthesize several neurotransmitters, including 5-hydroxytryptamine (from tryptophan), taurine, dopamine, norepinephrine, histamine, and gamma-aminobutyric acid (GABA).Many experimental and clinical observations support the fact that dietary vitamin B 6 is needed to maintain normal nervous system function.

4) together with vitamin B 12 and folic acid, pyridoxal 5-phosphate is involved in the single carbon metabolism and is necessary to maintain normal plasma homocysteine levels.Elevated plasma homocysteine may be an independent risk factor for the development of cardiovascular disease.In addition, pyridoxal -5- phosphate helps maintain normal immune function due to its involvement in single carbon metabolism.

5)Pyridoxal 5′-phosphate can be used as a food nutrition enhancer

Pyridoxal 5′-phosphate Packaging and Shipping

Package: 25kg/fiber drum

Pyridoxal 5′-phosphate in Storage

Stored in the dry and ventilated inside storeroom, prevent direct sunlight, slightly pile and put down

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