4-(Dimethylamino)-1-methylpyridinium (iodide) CAS 7538-79-6
| CAS No. | 7538-79-6 |
| Molecular Formula | C8H13N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(Dimethylamino)-1-methylpyridinium (iodide) (CAS 7538-79-6) is a high-purity analytical reference standard with the molecular formula C8H13N2I and a molecular weight of 264.11 g/mol.
The molecular framework of 4-(Dimethylamino)-1-methylpyridinium (iodide) (C8H13N2I) is characterized by a nitrile group, iodine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H13N2 I |
| Molecular Weight | 264.11 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 |
Related Dimethylamino Standards
- 3-(DImethylamino)propanamide hydrochloride (CAS 1000395-57-2)
- 2-[2-(Dimethylamino)phenyl]acetonitrile (CAS 1000512-16-2)
- 3-((3-(Dimethylamino)propyl)amino)-7-fluoro-4-methyl-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 1000574-72-0)
- 6-(Dimethylamino)-1H-indole-2-carboxylic acid (CAS 100060-36-4)
- 2-{4-[(dimethylamino)methyl]phenyl}benzonitrile (CAS 1000930-96-0)
- 2-(Dimethylamino)-3-(4-methylphenyl)-3H-thieno[2,3-d]imidazole-5-carboxylic acid (CAS 1000932-46-6)
- 2-(4-(Dimethylamino)phenyl)acetohydrazide (CAS 100133-14-0)
- (E)-3-(Dimethylamino)-1-(1-methyl-4-nitro-1h-pyrazol-3-yl)prop-2-en-1-one (CAS 1001500-83-9)
Recommended Standards
- 3-(3',3'-Dimethyl-6-nitrospiro[chromene-2,2'-indolin]-1'-yl)propanoic acid (CAS 55779-26-5)
- (6-Chloro-3-fluoropyridin-2-yl)methanol (CAS 884494-80-8)
- 5-Fluorobenzo[d]thiazol-2(3H)-one (CAS 1065678-31-0)
- Valsartan Impurity 83 (CAS CATO-C4X-105783)
- Naproxen EP Impurity C (CAS 84236-26-0)
- 4-Amino-N-isobutyl-1,2,5-oxadiazole-3-carboxamide (CAS 405278-58-2)
- 1-Iodo-2-methoxynaphthalene (CAS 32721-21-4)
- Nemonoxacin Impurity 71 (CAS 1203651-06-2)
- N-(2-((4-Phenylpiperazin-1-yl)sulfonyl)ethyl)-2-(thiophen-2-yl)acetamide (CAS 897621-83-9)
- Des-Ile27-Tirzepatide (CAS CATO-CPTD788946)
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