1-Methyl-1H-imidazole-2-carboxylic acid CAS 20485-43-2
| CAS No. | 20485-43-2 |
| Molecular Formula | C5H6N2O2 |
| Molecular Weight | 126.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Methyl-1H-imidazole-2-carboxylic acid.
1-Methyl-1H-imidazole-2-carboxylic acid (CAS 20485-43-2) is a high-purity analytical reference standard with the molecular formula C5H6N2O2 and a molecular weight of 126.11 g/mol.
Based on its molecular formula C5H6N2O2, 1-Methyl-1H-imidazole-2-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 126.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C5H6N2O2 |
| Molecular Weight | 126.11 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Kojic Impurity N1 (CAS 644-46-2)
- 5-Methylfuran-2-carboxylic acid (CAS 1917-15-3)
- Maltol (CAS 118-71-8)
- 3-Amino-6-methyl-1,2,4-triazin-5(4H)-one (CAS 1004-04-2)
- 3-Acetyl-2-hydroxy-5-methylbenzoic acid (CAS 1760-83-4)
- 3-Chloro-7-isopropoxy-2H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 1437434-27-9)
- Ethyl 6-methoxy-4-oxo-1,4-dihydro-1,5-naphthyridine-3-carboxylate (CAS 724788-63-0)
- 1-Bromo-2-(difluoromethoxy)-5-fluoro-3-nitrobenzene (CAS 1805591-69-8)
- 2-Amino-4-(3,4-dimethoxyphenyl)thiophene-3-carboxylic acid (CAS 899690-79-0)
- 2-(2-Fluorophenyl)-N,N-dimethyl-5-(thiophen-2-yl)pyrimidin-4-amine (CAS 823796-20-9)
- 4,6-dichloro-1H-1,3-benzodiazol-2-amine (CAS 30486-76-1)
- 1H-imidazol-2-ylmethanamine;hydrochloride (CAS 138799-95-8)
- Galgravin (CAS 528-63-2)
- Neuropeptide AF (human) (CAS 192387-38-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com