| Product Name | Guanosine |
|---|---|
| CAS Number | 118-00-3 |
| Molecular Formula | C₁₀H₁₃N₅O₅ |
| Molecular Weight | 283.24 g/mol |
| EINECS Number | 204-227-8 |
| Appearance | White to off-white crystalline powder |
| Assay (HPLC) | ≥ 99.0% |
| Loss on Drying | ≤ 0.5% |
| Residue on Ignition | ≤ 0.1% |
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Guanosine, also known as 9- β – D-ribofuranosyl guanine, has a flavor profile and a synergistic effect with monosodium glutamate, which can enhance the umami taste of monosodium glutamate by several times to tens of times. At the same time, it is also an important raw material for nucleoside antiviral drugs such as ribavirin, acyclovir, acyclovir, nucleoside, and sodium guanosine triphosphate. Currently, the demand for guanosine is increasing at a rate of 10% to 20% per year, and the market prospects are very optimistic.

In addition to its role in research and pharmaceutical applications, guanosine is used as a flavor enhancer in the food industry, particularly in combination with inosine monophosphate (IMP) to produce umami taste. Its safety profile and functional versatility make it a valuable ingredient across multiple industries.
Source: Yeast fermentation, enzymatic synthesis, or extraction from natural sources
Standardization: ≥99.0% guanosine (HPLC)
Forms: Crystalline powder, pharmaceutical-grade, and food-grade available
Applications: Pharmaceutical API, research reagent, food additive, and dietary supplement ingredient
| Compound | Purity | CAS No. | Key Application | Relationship |
| Guanosine | ≥99% | 118-00-3 | API / Flavor enhancer | Parent compound |
| Adenosine | ≥99% | 58-61-7 | Anti-aging skincare / API | Purine analogue |
| Inosine | ≥99% | 58-63-9 | Sports nutrition / API | Deaminated analogue |
| Uridine | ≥99% | 58-96-8 | Brain health supplements | Pyrimidine analogue |
| Cytidine | ≥99% | 65-43-3 | API / Skincare repair | Pyrimidine analogue |
| Parameter | Specification |
|---|---|
| Guanosine Content (HPLC) | ≥ 99.0% |
| Identification | UV-Vis / IR spectrum conforms to reference |
| Specific Rotation | -60.0° to -70.0° |
| Melting Point | > 300°C (with decomposition) |
| Loss on Drying | ≤ 0.5% |
| Residue on Ignition | ≤ 0.1% |
| Heavy Metals (as Pb) | ≤ 10 ppm |
| Arsenic (As) | ≤ 1 ppm |
| Microbial Limits | Conforms to USP/EP standards |
Monthly capacity: 500+ kg
Lead time: 3–5 days (samples), 10–15 days (bulk)
Documentation: COA,HPLC
Packaging: 1 kg, 5 kg, 10 kg, 25 kg (double‑layer PE bag inside, fiber drum outside)
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