1H-Benzo[d]imidazol-5(4H)-one CAS 148832-39-7
| CAS No. | 148832-39-7 |
| Molecular Formula | C7H6N2O |
| Molecular Weight | 134.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1H-Benzo[d]imidazol-5(4H)-one (CAS 148832-39-7), molecular formula C7H6N2O and molecular weight 134.14 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, an aromatic ring system, 1H-Benzo[d]imidazol-5(4H)-one is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 134.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), 1H-Benzo[d]imidazol-5(4H)-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 | C7H6N2O |
| Molecular Weight | 134.14 g/mol |
| 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.) | 1999 |
| Nitrogen Atoms | 2 |
Related H Standards
- Benzo[d]oxazol-7-amine (CAS 136992-95-5)
- Benzo[d]isoxazol-4-amine (CAS 1558272-96-0)
- 2H-Benzo[d][1,2,3]triazol-2-amine (CAS 1614-11-5)
- 1H-Benzo[d]imidazol-1-ol (CAS 59118-51-3)
- 2H-benzo[d][1,2,3]triazol-5-amine (CAS 503183-58-2)
- 4H-Benzo[d]imidazol-5-ol (CAS 774510-09-7)
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- Benzo[d]isoxazol-7-amine (CAS 88237-22-3)
Recommended Standards
- 1-(Pyrazin-2-yl)prop-2-en-1-one (CAS 1485125-04-9)
- 7H-Pyrrolo[2,3-d]pyrimidin-4-amine (CAS 1500-85-2)
- 1-(Pyrimidin-2-yl)prop-2-en-1-one (CAS 1478015-44-9)
- 5H-pyrrolo[2,3-b]pyrazin-2-amine (CAS 1504066-86-7)
- 5-(2,5-Dichlorothiophen-3-yl)-1-(p-tolyl)-1H-pyrazole (CAS 321848-38-8)
- 1-tert-butyl-4-(hydroxymethyl)pyrrolidin-2-one (CAS 59857-89-5)
- n-(2-Methoxyethyl)-1,4-dioxaspiro[4.5]decan-8-amine (CAS 1019604-57-9)
- ICI 216,140 (CAS 124001-41-8)
- 5-(Adamantan-1-ylmethyl)-4-cyclopropyl-4h-1,2,4-triazole-3-thiol (CAS 828274-06-2)
- 4-Hydroxy-2-methylnicotinaldehyde (CAS 1289218-00-3)
- Methyl 6-Methylindole-2-carboxylate (CAS 18377-65-6)
- 3-bromo-2-iodoaniline hydrochloride (CAS 1909337-40-1)
- Bis(perfluorophenyl)(phenyl)phosphineoxide (CAS 5594-90-1)
- Semaglutide impurity 60 (CAS CATO-C4X-222660)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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