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Introduction
Name | Hypoxanthine |
Molecular Formula | C5H4N4O |
Molecular Weight | 136.11 |
CAS Registry Number | 68-94-0 |
EINECS | 200-697-3 |
Hypoxanthine is one of the products of the action of xanthine oxidase on xanthine. However, more frequently in purine degradation, xanthine is formed from oxidation of hypoxanthine by xanthine oxidoreductase.
Hypoxanthine-guanine phosphoribosyltransferase converts hypoxanthine into IMP in nucleotide salvage.
Hypoxanthine is also a spontaneous deamination product of adenine. Because of its resemblance to guanine, the spontaneous deamination of adenine can lead to an error in DNA transcription/replication, as it binds with cytosine.
Hypoxanthine is a naturally occurring purine derivative. It is occasionally found as a constituent of nucleic acids where it is present in the anticodon of tRNA in the form of its nucleoside inosine. It has a tautomer known as 6-Hydroxypurine.
Hypoxanthine is a necessary additive in certain cell, bacteria, and parasite cultures as a substrate and nitrogen source. For example, it is commonly a required reagent in malaria parasite cultures, since Plasmodium falciparum requires a source of hypoxanthine for nucleic acid synthesis and energy metabolism.
Specification
Item | Test Standard | Testing Result | |
Appearance | Powder | Complies | |
Color | White fine Powder | Complies | |
Particle Size | 100% pass 80 mesh | Complies | |
Oder | Characteristic | Complies | |
Taste | Characteristic | Complies | |
Loss on Drying | ≤5.0% | 2.20% | |
Residue on Ignition | ≤0.1% | 0.05% | |
Residual acetone | ≤0.1% | Complies | |
Residual Ethanol | ≤0.5% | Complies | |
Heave Mentals | ≤10ppm | Complies | |
Na | ≤0.1% | <0.1% | |
Pb | ≤3 ppm | Complies | |
Total Plate | <1000CFU/g | Complies | |
Yeast & Mold | <100 CFU /g | Complies | |
E. Coli | Negative | Complies | |
Salmonella | Negative | Complies | |
Conclusion: Conform with USP Standard |