2,3-Dichlorobenzo[g]quinoxaline CAS 19187-03-2
| CAS No. | 19187-03-2 |
| Molecular Formula | C12H6Cl2N2 |
| Molecular Weight | 249.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 2,3-Dichlorobenzo[g]quinoxaline is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 249.10 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.
CATO supplies 2,3-Dichlorobenzo[g]quinoxaline (CAS 19187-03-2), a certified reference material (molecular formula C12H6Cl2N2, MW 249.10 g/mol) for analytical method development and quality control.
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), 2,3-Dichlorobenzo[g]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 | C12H6Cl2N2 |
| Molecular Weight | 249.10 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichlorobenzo Standards
- 1,6-Dichlorobenzo[c][1,8]naphthyridine (CAS 1447607-52-4)
- 2,4-Dichlorobenzo[g]quinazoline (CAS 33987-01-8)
- 2,3-Dichlorobenzo[b]thiophene-7-carboxylic acid (CAS 1934572-26-5)
- 2,4-Dichlorobenzo[4,5]thieno[3,2-d]pyrimidine (CAS 160199-05-3)
- 6,7-Dichlorobenzo[4,5]imidazo[2,1-b]thiazol-3(2H)-one (CAS 866144-64-1)
- Methyl 3,4-dichlorobenzo[b]thiophene-2-carboxylate (CAS 444905-19-5)
- Methyl 3,6-dichlorobenzo[b]thiophene-2-carboxylate (CAS 21211-18-7)
- 3,6-Dichlorobenzo[b]thiophene-2-carbohydrazide (CAS 329219-49-0)
Recommended Standards
- 2-Bromo-6-fluoro-3-(methylthio)benzaldehyde (CAS 1879026-24-0)
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- 6-Chloro-2-(2-chlorophenyl)nicotinonitrile (CAS 1779123-23-7)
- 1-(4-Bromo-1-naphthyl)ethanone (CAS 46258-62-2)
- DL-CITRULLINE (CAS 627-77-0)
- Ethyl 2,4-dibromo-5-(difluoromethoxy)phenylacetate (CAS 1805473-57-7)
- 5,5-Dimethylmorpholin-3-one (CAS 127958-62-7)
- (6R,8R,8aS)-6-(benzyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxine-7,8-diol (CAS 58006-32-9)
- 5-{[(2-chlorophenyl)sulfanyl]methylidene}-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 477866-32-3)
- 1-Methyl-1h-pyrazole-5-carbohydrazide (CAS 197079-02-0)
- 3-Methoxy-5-methylpicolinamide (CAS 1864481-61-7)
- Dimethyl dihydrofuran-3,3(2H)-dicarboxylate (CAS 1314903-49-5)
- 7-(3,4-Dichlorophenyl)-[1,2,4]triazolo[4,3-b][1,2,4]triazine (CAS 73214-12-7)
- Myelin Basic Protein (85-99) Peptide Antagonist (CAS 444305-16-2)
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