5,6-Dichloro-1-(2-chlorobenzyl)-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole CAS 337920-70-4
| CAS No. | 337920-70-4 |
| Molecular Formula | C19H11Cl4N3 |
| Molecular Weight | 423.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5,6-Dichloro-1-(2-chlorobenzyl)-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole.
5,6-Dichloro-1-(2-chlorobenzyl)-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole (CAS 337920-70-4), molecular formula C19H11Cl4N3 and molecular weight 423.12 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5,6-Dichloro-1-(2-chlorobenzyl)-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole (C19H11Cl4N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 423.12 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures 5,6-Dichloro-1-(2-chlorobenzyl)-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H11Cl4N3 |
| Molecular Weight | 423.12 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dichloro Standards
- 5,6-Dichloro-1-(2-chlorobenzyl)-2-(6-chloropyridin-3-yl)-1H-benzo[d]imidazole (CAS 303144-81-2)
- 5,6-Dichloro-1-(3-chlorobenzyl)-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole (CAS 337920-69-1)
- 5,6-Dichloro-1-(4-chlorobenzyl)-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole (CAS 337920-71-5)
- trans-Dichloro(ethylene)(quinoline)platinum (CAS 53781-24-1)
- Ethyl 5,6-dichloro-2-(3-iodophenyl)pyrimidine-4-carboxylate (CAS 1956380-69-0)
- Ethyl 2-{2,4-dichloro-5-[5-(4-methoxyphenyl)-1H-1,2,3,4-tetrazol-1-yl]phenoxy}acetate (CAS 338961-68-5)
- 1-(2,4-Dichloro-5-isopropoxyphenyl)-N-(4-fluorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 400736-19-8)
- 2-((2-((2,4-Dichloro-5-(2-methoxyethoxy)phenyl)amino)-2-oxoethyl)thio)-N,N-diethylacetamide (CAS 341965-06-8)
Recommended Standards
- tert-Butyl 5-bromo-3-(tetramethyl-1,3,2-dioxaborolan-2-yl)indazole-1-carboxylate (CAS 2377607-49-1)
- tert-Butyl 4-bromo-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate (CAS 2377610-71-2)
- tert-Butyl 5-bromo-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo[2,3-c]pyridine-1-carboxylate (CAS 1632996-84-9)
- Tert-butyl 5-bromo-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine-1-carboxylate (CAS 1025719-14-5)
- 2,5-Dichloro-4-phenoxypyrimidine (CAS 76661-10-4)
- N,6-dimethyl-3-nitropyridin-2-amine (CAS 102627-69-0)
- 1-(2-Fluorophenyl)pyrazolidine-3,5-dione (CAS 1245036-24-1)
- 4-Methyl-2-((2-methylpentyl)amino)pentan-1-ol (CAS 1247744-56-4)
- Propan-2-one O-(2,3,3,3-tetrafluoro-2-(perfluoropropoxy)propanoyl) oxime (CAS 340034-66-4)
- 2-(2-Chloro-4-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetonitrile (CAS 1638250-73-3)
- (3-Phenoxyphenyl)methanethiol (CAS 64930-95-6)
- 2-Fluoro-6-(piperidin-1-yl)benzonitrile (CAS 646989-68-6)
- 6-(4-Hydroxyphenyl)-3-methylimidazo[2,1-b]thiazole-2-carboxylic acid (CAS 1437477-62-7)
- Semaglutide impurity 87 (CAS CATO-C4X-222687)
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