2-(Cyanomethyl)-5-nitrobenzimidazole CAS 33137-87-0
| CAS No. | 33137-87-0 |
| Molecular Formula | C9H6N4O2 |
| Molecular Weight | 202.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(Cyanomethyl)-5-nitrobenzimidazole (CAS 33137-87-0) is a high-purity analytical reference standard with the molecular formula C9H6N4O2 and a molecular weight of 202.17 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 2-(Cyanomethyl)-5-nitrobenzimidazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 202.17 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.
Physical & Chemical Properties
| Molecular Formula | C9H6N4O2 |
| Molecular Weight | 202.17 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 4 |
Related Cyanomethyl Standards
- 6-(Cyanomethyl)benzo[d]oxazole-2-carboxylic acid (CAS 1803808-81-2)
- 7-(Cyanomethyl)benzo[d]oxazole-2-carboxylic acid (CAS 1804080-96-3)
- 4-(Cyanomethyl)benzo[d]oxazole-2-carboxylic acid (CAS 1804188-57-5)
- 5-(Cyanomethyl)benzo[d]oxazole-2-carboxylic acid (CAS 1804209-86-6)
- 4-[(Cyanomethyl)carbamoyl]phenylboronic Acid (CAS 1056636-11-3)
- N-(cyanomethyl)-N-cyclopropylbenzamide (CAS 1252203-40-9)
- 4-(Cyanomethyl)-1-methyl-1H-pyrazole-5-sulfonamide (CAS 117519-66-1)
- 1-(Cyanomethyl)-1H-benzo[d]imidazole-2-carboxamide (CAS 373618-97-4)
Recommended Standards
- 2-(azidomethyl)-2,3-dihydro-1H-isoindole-1,3-dione (CAS 26964-88-5)
- 2-(Pyrimidin-2-yl)pyrimidine-5-carboxylic acid (CAS 933191-25-4)
- 2-(2,4,5-Trihydroxybenzylidene)malononitrile (CAS 771575-34-9)
- 2-[(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)oxy]acetonitrile (CAS 75372-44-0)
- Irgarol-d9 (tert-butyl-d9) (CAS 1189926-01-9)
- Methyl 5-methyl-3-(p-tolyl)isoxazole-4-carboxylate (CAS 79379-87-6)
- N-(2-Ethoxyphenyl)-2-((2-methylquinazolin-4-yl)oxy)acetamide (CAS 1116082-30-4)
- 3-(Trimethylsilyl)propioloyl chloride (CAS 66224-70-2)
- 2-Hexyl-3-hydroxy-5-[(tetrahydro-2H-pyran-2-yl)oxy]-hexadecanoic Acid Methyl Ester (CAS 104801-68-5)
- 2-(2,5-Dichloroanilino)pyridine-3-carbonitrile (CAS 1019357-51-7)
- Clozapine EP Impuirty C-D8 N-nitroso (CAS CATO-C4X-134018)
- 6-Bromopyridazine-3-carboxamide (CAS 1421313-70-3)
- 4-(Aminomethyl)-3-methoxybenzenesulfonamide (CAS 2660178-89-0)
- Semaglutide impurity 57 (CAS 2773558-06-6)
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