Guanosine Impurity 6 CAS 18186-48-6
| CAS No. | 18186-48-6 |
| Molecular Formula | C16H23N5O15P2 |
| Molecular Weight | 587.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Guanosine Impurity 6 (CAS 18186-48-6), molecular formula C16H23N5O15P2 and molecular weight 587.33 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H23N5O15P2, Guanosine Impurity 6 contains a flavonoid core, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 587.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Guanosine Impurity 6 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H23N5O15P2 |
| Molecular Weight | 587.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 5 |
Related Guanosine Standards
- Guanosine 3'-(trihydrogen diphosphate), 5'-(trihydrogen diphosphate) (CAS 32452-17-8)
- Guanosine 3,5-cyclic Monophosphorothioate, β-Phenyl-1,N2-etheno-8-bromo-, Rp-Isomer, Sodium Salt - CAS 172806-20-1 - Calbiochem (CAS 172806-20-1)
- Guanosine-5-O-(1-thiotriphosphate) (CAS 81570-50-5)
- Guanosine 5'-TriphosphateDISCONTINUED (CAS 86-01-1)
- 160385-87-5 guanosine,8-[(4-chlorophenyl)thio]-, cyclic 3',5'-[(s)-hydrogen phosphorothioate] (9ci) (CAS 160385-87-5)
- Guanosine Impurity 3 (CAS 117723-13-4)
- Guanosine 5'-Diphosphate (CAS 146-91-8)
- Guanosine Impurity 1 (CAS 69281-33-0)
Recommended Standards
- Macitentan Impurity 24 (CAS 556797-16-1)
- rac 1,2-Bis-palmitoyl-3-chloropropanediol (CAS 51930-97-3)
- Cambendichlor (CAS 56141-00-5)
- 1,3-Dipalmitoyl-2-chloropropanediol (CAS 169471-41-4)
- 5-(Trifluoromethyl)-3,4,5,6-tetrahydropyridin-2-amine (CAS 179684-52-7)
- Zinquin ethyl ester (CAS 181530-09-6)
- 3-Methyl-1-tosyl-1H-indole (CAS 36797-43-0)
- Androisoxazole (CAS 360-66-7)
- 1-(3-Chloro-5-fluorophenyl)ethan-1-one (CAS 842140-52-7)
- 2-(2,3,5,6-Tetrafluorophenoxy)acetic acid (CAS 14742-39-3)
- 3-Bromo-4-phenyl-2-butanone (CAS 55985-68-7)
- 1-(3-Bromophenyl)-9H-pyrido[3,4-b]indole (CAS 767354-20-1)
- Ethyl 5-formyl-4-methyl-1H-pyrrole-2-carboxylate (CAS 26018-26-8)
- Stresscopin-Related Peptide (human) (CAS 348626-74-4)
Why CATO?
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