1-(2-Hydroxy-1H-benzo[d]imidazol-1-yl)ethan-1-one CAS 14394-91-3
| CAS No. | 14394-91-3 |
| Molecular Formula | C9H8N2O2 |
| Molecular Weight | 176.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(2-Hydroxy-1H-benzo[d]imidazol-1-yl)ethan-1-one (CAS 14394-91-3), molecular formula C9H8N2O2 and molecular weight 176.17 g/mol, is a CATO reference standard with documented purity and traceability.
1-(2-Hydroxy-1H-benzo[d]imidazol-1-yl)ethan-1-one (C9H8N2O2) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H8N2O2 |
| Molecular Weight | 176.17 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 2-Methyl-4,5-dihydro-1,3,4-benzoxadiazepin-5-one (CAS 144760-62-3)
- 2-(6-(Dimethylamino)-4-methylpyridin-3-yl)acetonitrile (CAS 764651-70-9)
- 3-Amino-6-bromo-2,3-dihydrobenzofuran (CAS 944709-63-1)
- 5-Chloro-2,2-dimethylpentanenitrile (CAS 4207-54-9)
- (5-Hydroxy rosiglitazone)-β-D-glucuronide (CAS 288853-59-8)
- Diethyl 4,4'-carbonyldibenzoate (CAS 1797-82-6)
- Metoclopramide Impurity 21 (CAS 25195-05-5)
- 4,4'-([9,9'-Bicarbazole]-3,3'-diyl)dibenzaldehyde (CAS 2446214-50-0)
- 1-[(3,5-dimethyl-1h-pyrazol-4-yl)sulfonyl]-4-methylpiperazine (CAS 926266-29-7)
- Clotrimazole Impurity 9 (CAS 23593-68-2)
- Hepcidin/LEAP-1 (Human); Liver-Expressed Antimicrobial Peptide (CAS 342790-21-0)
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