6,7-Dimethyl-2,3-di(2-pyridyl)quinoxaline CAS 6627-38-9
| CAS No. | 6627-38-9 |
| Molecular Formula | C20H16N4 |
| Molecular Weight | 312.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 6,7-Dimethyl-2,3-di(2-pyridyl)quinoxaline (C20H16N4) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
6,7-Dimethyl-2,3-di(2-pyridyl)quinoxaline (CAS 6627-38-9) is a high-purity analytical reference standard with the molecular formula C20H16N4 and a molecular weight of 312.37 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.
CATO manufactures 6,7-Dimethyl-2,3-di(2-pyridyl)quinoxaline 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 | C20H16N4 |
| Molecular Weight | 312.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
Related Dimethyl Standards
- N,4-Dimethyl-N-(3-(2-oxooxazolidin-3-yl)propyl)benzenesulfonamide (CAS 13621-75-5)
- 1,3-Dimethyl-N-((5-(thiophen-3-yl)pyridin-3-yl)methyl)-1H-pyrazole-5-carboxamide (CAS 1704639-10-0)
- 4-(3,5-Dimethyl-1H-pyrazol-1-yl)-N-(4-methylthiazol-2-yl)benzamide (CAS 956959-79-8)
- N,4-Dimethyl-N-(quinolin-4-yl)benzenesulfonamide (CAS 26862-22-6)
- ((S)-3,3-Dimethyl-2-pivalamidobutanoyl)-L-proline (CAS 2682205-87-2)
- 4-(5,5-Dimethyl-1,3-dioxan-2-yl)-1-(naphthalen-1-yl)butan-1-one (CAS 898756-29-1)
- 4-(5,5-Dimethyl-1,3-dioxan-2-yl)-2-butyronaphthone (CAS 898756-38-2)
- 2,2'-Dimethyl-[1,1'-binaphthalene]-4,4'-diamine (CAS 1165-03-3)
Recommended Standards
- Phlorine (CAS 26660-92-4)
- Desulfovardenafil (CAS 224789-21-3)
- N-benzyl-2-nitro-5-(piperazin-1-yl)aniline (CAS 346704-07-2)
- Tofacitinib Impurity 1 (CAS 1092578-46-5)
- Methyl 3-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (CAS 2377610-23-4)
- (4-methoxyphenyl)-pyrrolidin-2-yl-methanone (CAS 1017366-65-2)
- {[1-(2-Methoxyethyl)piperidin-4-yl]methyl}(tetrahy-drofuran-2-ylmethyl)amine dihydrochloride (CAS 1185299-61-9)
- N-(Piperidin-1-yl)-6-(trifluoromethyl)-pyridin-2-amine (CAS 1558514-05-8)
- 1-Tert-butyl-3,6-dimethyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1118787-79-3)
- 2-[(4-Nitrophenyl)carbamoyl]thiophen-3-yl N,N-dimethylsulfamate (CAS 338794-40-4)
- 4-Methyl-2-(methylamino)pentanoic acid hydrochloride (CAS 2215857-49-9)
- 4-tert-butyl-1H-pyrrole-2-carbaldehyde (CAS 156245-57-7)
- 4-Hydrazinyl-7,8-dimethoxy-5H-pyrimido[5,4-b]indole (CAS 121218-45-9)
- Semaglutide impurity 65 (CAS CATO-C4X-222665)
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