• Spermidine Powder

Spermidine Powder


Spermidine, also known as spermidine trihydrochloride, is a polyamine. It is widely distributed in organisms and is biosynthesized by putrescine (butanediamine) and adenosylmethionine.

Spermidine is an abundant natural polyamine found in wheat germ. It can inhibit neuronal synthase, bind and precipitate DNA, and can also be used to purify DNA binding protein, stimulate T4 polynucleotide kinase activity. 

Test Items Specifications Results
Appearance White powder Conforms
Purity (HPLC) ≥0.2% 0.21%
Particle size 100% pass 80mesh Conforms
Loss on drying ≤2.0% 1.80%
Heavy metal contents
Pb ≤0.5ppm Conforms
As ≤0.5ppm Conforms
Hg ≤0.5ppm Conforms
Cd ≤0.5ppm Conforms
Microbiological Tests
Total number of bacteria ≤1000cfu/g Conforms
Yeast ≤100cfu/g Conforms
Escherichia coli Not detected Not detected
Salmonella Not detected Not detected
Staphylococcus Not detected Not detected
Conclusion: The product conforms to the above in-house standards.