1-Ethyl-2-methyl-1H-benzimidazole-5-carboxylic acid CAS 2788-73-0
| CAS No. | 2788-73-0 |
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Ethyl-2-methyl-1H-benzimidazole-5-carboxylic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1-Ethyl-2-methyl-1H-benzimidazole-5-carboxylic acid (CAS 2788-73-0), a certified reference material (molecular formula C11H12N2O2, MW 204.23 g/mol) for analytical method development and quality control.
1-Ethyl-2-methyl-1H-benzimidazole-5-carboxylic acid (C11H12N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-Ethyl-2-methyl-1H-benzimidazole-5-carboxylic acid 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 | C11H12N2O2 |
| Molecular Weight | 204.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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.) | 1957 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1-Ethyl-1H-benzo[d]imidazol-2-yl acetate (CAS 579515-36-9)
- 1-Ethyl-2-methyl-1h-benzo[d]imidazole-4-carboxylic acid (CAS 208772-10-5)
- 1-Cyclopentyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 21253-98-5)
- 1-Ethyl-3-methyl-2-nitro-1H-indole (CAS 680574-13-4)
- 5-Fluoro-2-((3-methylbutan-2-yl)amino)benzonitrile (CAS 1405012-91-0)
- 3-{3H-imidazo[4,5-b]pyridin-2-yl}propan-1-amine dihydrochloride (CAS 1215739-41-5)
- 3,3-dimethyl-4-(oxolan-2-yl)azetidin-2-one (CAS 1803589-31-2)
- 3-(4-chlorophenyl)-2-cyano-N-[(hydroxyimino)methyl]acrylamide (CAS 303994-78-7)
- 1-Tosyl-1H-indol-4-ol (CAS 81038-34-8)
- Methyl 2-(4-phenylpiperazin-1-yl)acetate (CAS 201727-67-5)
- 2-(1-(4-Bromophenyl)ethyl)-6-methyl-4,5-dihydropyridazin-3(2H)-one (CAS 70646-80-9)
- 2-Chloro-N-(3-((3-chlorobiphenyl-4-yl)methyl)-2-ethyl-4-oxo-3,4-dihydroquinazolin-6-yl)benzamide (CAS 570373-45-4)
- 3-Phenyl-1-(pyridin-4-yl)urea (CAS 1932-35-0)
- Mitogenic Pentapeptide (CAS 87173-03-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com