Inosine Impurity 2 CAS 52678-79-2
| CAS No. | 52678-79-2 |
| Molecular Formula | C10H12N4O5 |
| Molecular Weight | 268.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Inosine Impurity 2 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.
Inosine Impurity 2 (CAS 52678-79-2) is a certified pharmaceutical impurity reference standard with the molecular formula C10H12N4O5 and a molecular weight of 268.23 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Inosine Impurity 2 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 268.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C10H12N4O5 |
| Molecular Weight | 268.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°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.) | 1972 |
| Nitrogen Atoms | 4 |
Related Inosine Standards
Recommended Standards
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- 1,4-Dihydro-4-|A-D-ribofuranosyl-5H-1,2,3-triazolo[4,5-b]pyridin-5-one 4-(|A-D-Ribofuranosyl)-vic-triazolo[4,5-b]pyridin-5-one 59892-40-9 (CAS 59892-40-9)
- Phenyl(4-(trifluoromethoxy)phenyl)methanol (CAS 502483-45-6)
- 3-[7-(trifluoromethyl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]propanoic acid (CAS 1018170-82-5)
- Pregabalin Impurity 112 (CAS CATO-C4X-1312112)
- Cangrelor Impurity 1 (CAS 1830294-25-1)
- Levocetirizine Impurity 80 (CAS 1232460-31-9)
- 5-(bromomethyl)-5-methyl-1,3-dioxan-2-one (CAS 1346562-84-2)
- 2-(5-Amino-benzoimidazol-1-yl)-ethanoldihydrochloride (CAS 1158248-63-5)
- Tiamulin EP impurity H (CAS CATO-C4X-221015)
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- Diethyl ((3-isobutoxy-4-methoxyphenyl)methylene)dicarbamate (CAS 883671-44-1)
- Ethyl 5-(4-bromophenyl)-1H-pyrazole-3-carboxylate (CAS 1048930-76-2)
- (2S)-2-amino-4-(hydroxymethylphosphinyl)butanoyl-L-alanyl-L-alanine (2S)-2-amino-4-[hydroxy(methyl)phosphinoyl]butyryl-L-alanyl-L-alanine 2-Amino-4-(methylphosphino)butyrylalanylalanine 35597-43-4 Antibiotic SF 1293 Bialaphos CHEBI:3088 L-phosphinothricyl-L-alanyl-L-alanine N-{(2S)-2-amino-4-[hydroxy(methyl)phosphoryl]butanoyl}-L-alanyl-L-alanine PTT Phosphinothricylalanylalanine bilanafos gamma-(Hydroxymethylphosphinyl)-L-alpha-aminobutyryl-L-alanyl-L-alanine phosphinothricin tripeptide (CAS 35597-43-4)
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