2,3-dichlorobenzo[f]quinoxaline CAS 26907-93-7
| CAS No. | 26907-93-7 |
| Molecular Formula | C12H20Cl2N2 |
| Molecular Weight | 263.21 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 2,3-dichlorobenzo[f]quinoxaline.
2,3-dichlorobenzo[f]quinoxaline (CAS 26907-93-7), molecular formula C12H20Cl2N2 and molecular weight 263.21 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2,3-dichlorobenzo[f]quinoxaline (C12H20Cl2N2) is characterized by a nitrile group, chlorine substitution. 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. 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), 2,3-dichlorobenzo[f]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 | C12H20Cl2N2 |
| Molecular Weight | 263.21 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related dichlorobenzo Standards
- 1,3-Dichlorobenzo[4,5]imidazo[1,2-a]pyridine-4-carbonitrile (CAS 170894-91-4)
- 3,6-Dichlorobenzo[b]thiophene-2-carbohydrazide (CAS 329219-49-0)
- N-(4,7-Dichlorobenzo[d]thiazol-2-yl)acetamide (CAS 868230-30-2)
- Methyl 3,4-dichlorobenzo[b]thiophene-2-carboxylate (CAS 444905-19-5)
- Methyl 3,6-dichlorobenzo[b]thiophene-2-carboxylate (CAS 21211-18-7)
- 3,4-Dichlorobenzo[b]thiophene-2-carbonyl chloride (CAS 34576-86-8)
- 6,7-Dichlorobenzo[4,5]imidazo[2,1-b]thiazol-3(2H)-one (CAS 866144-64-1)
- 2,4-Dichlorobenzo[4,5]thieno[3,2-d]pyrimidine (CAS 160199-05-3)
Recommended Standards
- 2,2,2-Trifluoroethyl (4-ethoxyphenyl)carbamate (CAS 331-01-1)
- 2-Cyano-n-(7-nitro-2,3-dihydro-1,4-benzodioxin-6-yl)acetamide (CAS 554436-87-2)
- 2-(4-Methoxyphenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxylic acid (CAS 3181-69-9)
- 2-Methyl-N'-[(1E)-(5-nitrofuran-2-yl)methylidene]furan-3-carbohydrazide (CAS 298218-15-2)
- 5-chloro-1H-pyrrolo[2,3-c]pyridine-3-carbonitrile (CAS 1272758-19-6)
- 1-(2-((2,3-Dichlorophenyl)amino)thiazol-5-yl)ethan-1-one (CAS 478259-74-4)
- 947179-19-3 Carbamic acid, N-[4-(difluoromethyl)-2-thiazolyl]-, 1,1-dimethylethyl ester (CAS 947179-19-3)
- 2-(Difluoromethyl)-3-methyl-5-nitropyridine-4-methanol (CAS 1806962-35-5)
- tert-Butyl (2-(2-amino-N-ethylacetamido)cyclohexyl)carbamate (CAS 1353947-40-6)
- N-(2-(2-Fluorophenyl)acetyl)-3-phenylpropiolamide (CAS 1956377-25-5)
- 2-Imino-5-(4-methoxybenzyl)thiazolidin-4-one (CAS 155621-63-9)
- 1-(2-Methoxy-ethyl)-[1,4]diazepane (CAS 59039-67-7)
- (5-(Benzylsulfonyl)-1H-1,2,4-triazol-1-yl)methanol (CAS 32550-64-4)
- D-[Thr]7-Liraglutide (CAS CATO-C4X-199237)
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