1-(2-Hydroxy-1H-imidazol-5-yl)ethan-1-one CAS 92635-44-4
| CAS No. | 92635-44-4 |
| Molecular Formula | C5H6N2O2 |
| Molecular Weight | 126.11 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.
1-(2-Hydroxy-1H-imidazol-5-yl)ethan-1-one (CAS 92635-44-4) is a high-purity analytical reference standard with the molecular formula C5H6N2O2 and a molecular weight of 126.11 g/mol.
1-(2-Hydroxy-1H-imidazol-5-yl)ethan-1-one (C5H6N2O2) 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).
As a certified reference material (CRM), 1-(2-Hydroxy-1H-imidazol-5-yl)ethan-1-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H6N2O2 |
| Molecular Weight | 126.11 g/mol |
| Purity | 97%+ |
| 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.) | 1983 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 1-(3-Hydroxyfuran-2-yl)ethanone (CAS 3420-59-5)
- 3-Oxocyclopent-1-enecarboxylic acid (CAS 196496-02-3)
- 1-(3-Methyl-1,2,4-oxadiazol-5-yl)ethanone (CAS 92845-58-4)
- 1,2-Diazaspiro[2.3]hex-1-ene-5-carboxylic acid (CAS 1936311-44-2)
- 2-(2-Fluoro-1-methylcyclopropyl)acetic acid (CAS 1909309-83-6)
- 3-[4-(2-chloroacetyl)phenyl]propanamide (CAS 341553-02-4)
- Methyl 3-bromo-5-nitropicolinate (CAS 1211581-74-6)
- 1-Methyl-5-(1H-1,2,4-triazol-5-yl)-1,2,3,6-tetrahydropyridine (CAS 622403-85-4)
- (5-(2-Methylcyclopropyl)furan-2-yl)methanol (CAS 1021047-05-1)
- 6-(Bromomethyl)-1-methyl-1,2,3,4-tetrahydroquinolin-2-one (CAS 184636-25-7)
- N-(4-bromophenyl)-2-(1-(3-chloro-4-morpholinophenyl)-2,5-dimethyl-1H-pyrrol-3-yl)-2-oxoacetamide (CAS 860610-33-9)
- 9-Oxa-1,4-diaza-spiro[5.5]undecane dihydrochloride (CAS 2305079-38-1)
- Bisindolylmaleimide II, 98% (CAS 137592-45-1)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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