2-((1h-Imidazol-2-yl)amino)-2-oxoacetic acid CAS 1340102-65-9
| CAS No. | 1340102-65-9 |
| Molecular Formula | C5H5N3O3 |
| Molecular Weight | 155.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-((1h-Imidazol-2-yl)amino)-2-oxoacetic acid (CAS 1340102-65-9), molecular formula C5H5N3O3 and molecular weight 155.11 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-((1h-Imidazol-2-yl)amino)-2-oxoacetic acid (C5H5N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 155.11 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C5H5N3O3 |
| Molecular Weight | 155.11 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 |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related h Standards
- [(1h-imidazol-2-yl)methyl](2-methoxyethyl)amine (CAS 921160-96-5)
- 1-(1H-Imidazol-5-yl)-2,2-dimethylpropan-1-ol (CAS 942495-07-0)
- 3-(1H-Imidazol-4-yl)prop-2-enethioic S-acid (CAS 857240-23-4)
- 3-(1H-Imidazol-1-yl)propanehydrazide (CAS 1190617-85-6)
- 2-(1H-imidazol-1-yl)butanoic acid (CAS 1218602-78-8)
- 2-(1H-imidazol-1-yl)propanehydrazide (CAS 1256642-95-1)
- 3-(1H-Imidazol-5-yl)-2-methylpropanoic acid (CAS 14676-72-3)
- 1-(1H-Imidazol-2-yl)-2-methoxypropan-1-one (CAS 2434602-35-2)
Recommended Standards
- 3-carbamoylfuran-2-carboxylic acid (CAS 13379-62-9)
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- (E)-3-(3-hydroxy-1H-1,2,4-triazol-5-yl)acrylic acid (CAS 1394306-92-3)
- 2-bromo-2-cyclobutyl-acetic acid (CAS 2411638-85-0)
- 3-Chloro-2-(methylamino)-5-(trifluoromethyl)pyridine 1-oxide (CAS 1379369-53-5)
- 1H,2H,3H-pyrrolo[2,3-b]pyridine-4-carbonitrile (CAS 1354454-97-9)
- N-(2,5-Dimethylphenyl)-3-(4-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-07-3)
- 3-bromo-L-Tyrosine (CAS 38739-13-8)
- 2-(2-Methoxyphenoxy)acetonitrile (CAS 6781-29-9)
- Selenophene-2-carbonyl chloride (CAS 39082-07-0)
- Chloro(methyl)(2-methyl-2-propanyl)(pentafluorophenyl)silane (CAS 73000-03-0)
- 2-{1-[(4-Methylphenyl)sulfonyl]-2-pyrrolidinyl}-1,3-benzothiazole (CAS 359802-85-0)
- 30003-72-6 insulin chain b oxidized (CAS 30003-72-6)
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