1-(2,3-Dihydro-1H-benzo[d]imidazol-1-yl)ethanone CAS 21472-16-2
| CAS No. | 21472-16-2 |
| Molecular Formula | C9H10N2O |
| Molecular Weight | 162.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 1-(2,3-Dihydro-1H-benzo[d]imidazol-1-yl)ethanone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 162.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
1-(2,3-Dihydro-1H-benzo[d]imidazol-1-yl)ethanone (CAS 21472-16-2) is a high-purity analytical reference standard with the molecular formula C9H10N2O and a molecular weight of 162.19 g/mol.
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 | C9H10N2O |
| Molecular Weight | 162.19 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
Related Dihydro Standards
- 2,3-Dihydro-1H-indole-2-carboxylic acid amide (CAS 108906-13-4)
- (2S)-2,3-dihydro-1H-indole-2-carboxamide (CAS 110660-78-1)
- 1-(2,3-Dihydro-1H-pyrrolo[2,3-b]pyridin-1-yl)ethanone (CAS 111097-45-1)
- 1-(2,3-Dihydro-1H-pyrrolo[2,3-c]pyridin-1-yl)ethanone (CAS 117103-44-3)
- 5-Methyl-2,3-Dihydro-1,8-Naphthyridin-4(1H)-One (CAS 1176517-83-1)
- 2-(4,5-Dihydro-2-oxazolyl)-6-methylpyridine (CAS 1308311-06-9)
- 6-Methyl-7,8-dihydro-1,6-naphthyridin-5(6H)-one (CAS 1312751-59-9)
- 1-Ethyl-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 136888-71-6)
Recommended Standards
- 1-(1H-Indazol-3-yl)ethanol (CAS 98952-79-5)
- 1-(2,3-Dihydro-1H-pyrrolo[3,2-c]pyridin-1-yl)ethanone (CAS 24603-29-0)
- 1-(1H-Benzo[d]imidazol-5-yl)ethanol (CAS 66792-92-5)
- 1-(2,3-Dihydrobenzofuran-2-yl)ethanone (CAS 19863-70-8)
- 5-bromo-2-(methylamino)-3,4-dihydropyrimidin-4-one (CAS 1540258-85-2)
- 2-Butyl-1H-imidazole-4,5-dicarbonitrile (CAS 114772-25-7)
- 1-(chloromethyl)-4-propylbenzene (CAS 3166-97-0)
- Isopropyl 2-methyl-3-oxo-3-(pyrazin-2-yl)propanoate (CAS 93778-22-4)
- (4-((4-(2-((Tert-butyldiphenylsilyl)oxy)ethyl)piperazin-1-yl)methyl)-2-fluorophenyl)boronic acid (CAS 1704096-94-5)
- (+)-Squamocin (CAS 120298-30-8)
- 2-(2-((Tetrahydro-2H-thiopyran-3-yl)amino)ethoxy)ethan-1-ol (CAS 1338962-74-5)
- CH2COOH-PEG6-CH2COOH (CAS 83824-29-7)
- 3,7,9-Tris(hydroxymethyl)-1H-purine-2,6,8(3H,7H,9H)-trione (CAS 73905-11-0)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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