1-Methylimidazole-4,5-dicarboxylic Acid CAS 19485-38-2
| CAS No. | 19485-38-2 |
| Molecular Formula | C6H6N2O4 |
| Molecular Weight | 170.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Methylimidazole-4,5-dicarboxylic Acid (C6H6N2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies 1-Methylimidazole-4,5-dicarboxylic Acid (CAS 19485-38-2), a certified reference material (molecular formula C6H6N2O4, MW 170.12 g/mol) for analytical method development and quality control.
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 | C6H6N2O4 |
| Molecular Weight | 170.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
Related Methylimidazole Standards
- 1-Methylimidazole-2-sulfonamide (CAS 89517-92-0)
- 1-Benzyl-2-methylimidazole (CAS 13750-62-4)
- Ethyl 1-Methylimidazole-2-carboxylate (CAS 30148-21-1)
- Ethyl 1-Methylimidazole-4-carboxylate (CAS 41507-56-6)
- Ethyl 1-Methylimidazole-5-carboxylate (CAS 66787-70-0)
- Methyl 1-Methylimidazole-4-carboxylate (CAS 17289-19-9)
- Methyl 1-Methylimidazole-5-carboxylate (CAS 17289-20-2)
- 1-Butyl-2-methylimidazole (CAS 13435-22-8)
Recommended Standards
- 5-Methoxy-3-nitropyridin-2-ol (CAS 1936401-14-7)
- 2-(Carboxymethyl)furan-3-carboxylic acid (CAS 196601-49-7)
- 4-Hydroxy-2-methyl-6-oxo-1,6-dihydropyrimidine-5-carboxylic acid (CAS 1936230-27-1)
- Methyl 1-methyl-4,5-dioxo-4,5-dihydro-1H-pyrazole-3-carboxylate (CAS 197652-36-1)
- 1-(4-Fluorobenzyl)-3-(1-methyl-1H-indol-3-yl)urea (CAS 941879-35-2)
- 1-(3-(Pyridin-2-yl)-1,2,4-oxadiazol-5-yl)ethan-1-amine 2,2,2-trifluoroacetate (CAS 1262774-59-3)
- TcBoc-Leu-OH (CAS 1047650-48-5)
- Ethyl 2-(3-bromothiophen-2-yl)-2-oxoacetate (CAS 70596-02-0)
- Methyl 11-oxoundecanoate (CAS 1931-65-3)
- Methyl 5-Hexynoate (CAS 77758-51-1)
- 4,5-Dichloro-6-ethoxypyridazin-3(2H)-one (CAS 117613-99-7)
- 7-Chloro-2-phenylquinazoline (CAS 867164-87-2)
- 2-chloro-5-methoxy-pyridin-4-ol (CAS 1196145-74-0)
- Exenatide Acetate (CAS 141732-76-5)
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