Buy Guanosine Powder Raw Pharmaceutical Intermediate Online CAS 118-00-3
Guanosine Specification
Product Name: Guanosine
CAS: 118-00-3
Standard: Enterprise Standard
Level: Medical grade
Content: 99%
Appearance: white powder
Packing: 25KG/ cardboard drum detachable
Category: Pharmaceutical raw materials
Field: Pharmaceutical intermediates
Down products: ribavirin, acyclovir, acyclovir, triazole or guanosine triphosphate
Application: As an important intermediate in food and pharmaceutical products, it can be used as a synthetic food preservative – 5′-disodium guanylate, disodium sulphate and nucleoside antiviral drugs such as ribavirin. Acyclovir and the like are also the main raw materials for the manufacture of drugs such as acyclovir, arribazole (ATC), and sodium guanosine triphosphate (GTP).
What is Guanosine?
Guanosine is a purine nucleoside comprising guanine attached to a ribose (ribofuranose) ring via a β-N9-glycosidic bond. Guanosine can be phosphorylated to become guanosine monophosphate (GMP), cyclic guanosine monophosphate (cGMP), guanosine diphosphate (GDP), and guanosine triphosphate (GTP). These forms play important roles in various biochemical processes such as synthesis of nucleic acids and proteins, photosynthesis, muscle contraction, and intracellular signal transduction (cGMP). When guanine is attached by its N9 nitrogen to the C1 carbon of a deoxyribose ring it is known as deoxyguanosine.
Guanosine Certificate of Analysis
| Product name |
Guanosine |
| CAS No. |
118-00-3 |
Outer Packing |
25KG/bag |
| Production date |
2018-02-25 |
Shelf life |
1 year |
| Standard adopted |
Enterprise Standard |
| Items of analysis |
Specification |
Results |
| Description |
White or off-white crystalline powder |
White crystalline powder |
| Heavy metals(pb) |
≤0.001% |
﹤0.001% |
| As |
≤0.0002% |
﹤0.0002% |
| Loss on drying |
≤5.0% |
1.4% |
| Residue on ignition |
≤0.5% |
0.1% |
| Assay |
97.0-103.0% |
100.5% |
| Conclusion |
Qualified |
