Guanosine Impurity 2 Disodium Salt CAS 7415-69-2
| CAS No. | 7415-69-2 |
| Molecular Formula | C10H13N5O11P2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 464.18 g/mol gives Guanosine Impurity 2 Disodium Salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Guanosine Impurity 2 Disodium Salt (CAS 7415-69-2), a pharmacopoeial impurity reference standard (molecular formula C10H13N5O11P2Na, MW 464.18 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Guanosine Impurity 2 Disodium Salt (C10H13N5O11P2Na) contains a carbohydrate-derived structure, an amide group, a phosphate ester group. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 464.18 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H13N5O11P2 2*Na |
| Molecular Weight | 464.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 5 |
Related Guanosine Standards
- Guanosine 5′-triphosphate, periodate oxidized sodium salt (CAS 103192-45-6)
- Guanosine 5′-triphosphate trihydroxymethylaminomethane salt (CAS 103192-46-7)
- Guanosine 5'-diphospho-mannose sodium salt, 95% (CAS 103301-72-0)
- Guanosine 5'-(trihydrogen diphosphate) P'-D-mannopyranosyl ester disodium salt (CAS 103301-73-1)
- Guanosine-5'-triphosphate-5'-Adenosine (CAS 10527-47-6)
- Guanosine Hydrate (CAS 1143525-19-2)
- Guanosine Impurity 3 (CAS 117723-13-4)
- Guanosine (CAS 118-00-3)
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- 2-(2,3-Dihydro-1h-isoindol-2-yl)ethan-1-ol hydrochloride (CAS 1354950-20-1)
- Calcineurin Autoinhibitory Peptide (CAS 148067-21-4)
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