4-Amino-1-methylpyridin-1-ium iodide CAS 7680-59-3
| CAS No. | 7680-59-3 |
| Molecular Formula | I |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Amino-1-methylpyridin-1-ium iodide (IC6H9N2) contains a nitrile group, iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 236.05 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Amino-1-methylpyridin-1-ium iodide (CAS 7680-59-3), molecular formula IC6H9N2 and molecular weight 236.05 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | I C6H9N2 |
| Molecular Weight | 236.05 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 2-(Difluoromethyl)-4-fluoro-6-hydroxypyridine-3-acetic acid (CAS 1805581-94-5)
- 1-(2-Chlorophenyl)-3-(2-(3-(pyridin-2-yl)-1H-pyrazol-1-yl)ethyl)urea (CAS 1448077-59-5)
- 1,4-Dihydroxy-2-((2-methoxypropyl)amino)anthracene-9,10-dione (CAS 62418-37-5)
- 3-Cyano-3-(2,3-dimethylphenyl)propiophenone (CAS 898769-14-7)
- Semaglutide impurity 41 (CAS CATO-C4X-222641)
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