2-Chloro-3-(2-pyridinyl)quinoxaline CAS 7755-94-4
| CAS No. | 7755-94-4 |
| Molecular Formula | C13H8ClN3 |
| Molecular Weight | 241.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-3-(2-pyridinyl)quinoxaline (CAS 7755-94-4), molecular formula C13H8ClN3 and molecular weight 241.68 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 2-Chloro-3-(2-pyridinyl)quinoxaline is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 241.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 2-Chloro-3-(2-pyridinyl)quinoxaline 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 | C13H8ClN3 |
| Molecular Weight | 241.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 1-Chloro-3-(pyridin-4-yl)-2,6-naphthyridine (CAS 1071017-49-6)
- 1-Chloro-3-(pyridin-4-yl)-2,7-naphthyridine (CAS 1211593-56-4)
- 8-Chloro-6-(pyridin-4-yl)-1,7-naphthyridine (CAS 1211595-29-7)
- 5-Chloro-2-(pyridin-3-yl)-1,6-naphthyridine (CAS 1443286-75-6)
- 2-chloro-6-(trifluoromethyl)quinoline (CAS 78060-56-7)
- 4-Chloro-2-(3-pyridyl)quinazoline (CAS 98296-25-4)
- 4-chloro-2-(pyridin-2-yl)quinazoline (CAS 91748-47-9)
- 4-Chloro-2-(pyridin-4-yl)quinazoline (CAS 6484-27-1)
Recommended Standards
- Pyrido[1,2-a]benzimidazole-4-carbonitrile, 1-chloro-3-methyl- (CAS 121105-78-0)
- 4-Chloro-2-phenylpyrido[2,3-d]pyrimidine (CAS 41803-67-2)
- Lornoxicam Impurity N1 (CAS 1017791-22-8)
- 4-chloro-3-(trifluoromethyl)quinoline (CAS 590371-93-0)
- N-(4-Amino-2-chlorophenyl)-3-methoxybenzamide (CAS 926236-30-8)
- Astrazon Orange R (CAS 4657-00-5)
- 2-Amino-3-(piperidin-4-yl)propanoic acid (CAS 109339-30-2)
- 2-hydrazinylacetonitrile (CAS 134542-35-1)
- 5-(5-Methoxy-1H-indol-2-yl)-1,3,4-oxadiazol-2(3H)-one (CAS 200061-92-3)
- 2-(Aminomethyl)-6-cyano-3-(difluoromethyl)-5-methylpyridine (CAS 1805183-50-9)
- 3-(Difluoromethyl)-2-iodoquinoline (CAS 2091217-04-6)
- (4-Aminopiperidin-1-yl)(cyclohex-3-en-1-yl)methanone (CAS 1154258-56-6)
- {3-methyl-3H-imidazo[4,5-c]pyridin-2-yl}methanamine dihydrochloride (CAS 1803600-25-0)
- Semaglutide Impurity 13 (CAS CATO-C4X-222613)
Why CATO?
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