4,8-dichloroimidazo[1,5-a]quinoxaline CAS 1334331-43-9
| CAS No. | 1334331-43-9 |
| Molecular Formula | C10H17Cl2N3 |
| Molecular Weight | 250.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 4,8-dichloroimidazo[1,5-a]quinoxaline (CAS 1334331-43-9), a certified reference material (molecular formula C10H17Cl2N3, MW 250.17 g/mol) for analytical method development and quality control.
Structurally, 4,8-dichloroimidazo[1,5-a]quinoxaline (C10H17Cl2N3) contains a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 250.17 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C10H17Cl2N3 |
| Molecular Weight | 250.17 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related dichloroimidazo Standards
- 4,7-dichloroimidazo[1,5-a]quinoxaline (CAS 847900-55-4)
- 3,3-Dichloroimidazo[2,1-a]isoquinolin-2(3H)-one (CAS 62472-02-0)
- Methyl 6,8-dichloroimidazo[1,2-a]pyrazine-2-carboxylate (CAS 2488625-40-5)
- 3,6-Dichloroimidazo[1,2-a]pyridine-2-carbohydrazide (CAS 2244083-76-7)
- (6,8-dichloroimidazo[1,2-a]pyridin-2-yl)acetic acid,HCl (CAS 59128-14-2)
- Ethyl 3,6-dichloroimidazo[1,2-a]pyridine-2-carboxylate (CAS 478040-91-4)
- Ethyl 6,8-dichloroimidazo[1,2-a]pyridine-2-carboxylate (CAS 444791-55-3)
- Ethyl 6,8-dichloroimidazo[1,2-b]pyridazine-3-carboxylate (CAS 1177415-90-5)
Recommended Standards
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- Methyl 3-methoxy-4-(trifluoromethoxy)benzoate (CAS 1261827-94-4)
- Ethyl 2-oxo-1-(2,2,2-trifluoroethyl)-1,2-dihydropyrimidine-5-carboxylate (CAS 1402232-92-1)
- 1-(2-Bromopyridin-4-yl)-N-methylmethanamine hydrochloride (CAS 1353976-68-7)
- Ethyl 5-(5-bromo-2-fluorophenoxy)pentanoate (CAS 1443348-16-0)
- 1,3-Bis-(3,5-dicarboxyphenyl)imidazolium chloride (CAS 1616577-91-3)
- 1-((4-Fluorophenyl)sulfonyl)piperidin-4-ol (CAS 1082928-80-0)
- tert-Butyl 4-(3-aminophenoxy)piperidine-1-carboxylate (CAS 790667-68-4)
- 2-(4-Chlorophenyl)-4,5,6,7-tetrahydro-2H-pyrazolo[4,3-c]pyridine (CAS 1356825-15-4)
- 5-Pyrimidinecarboxylicacidsodiumsalt (CAS 352535-06-9)
- 2-Methoxy-5-phenoxyaniline (CAS 116289-67-9)
- 6-Fluoro-3,4-quinolinediamine (CAS 110643-80-6)
- Mast Cell Degranulating (MCD) Peptide HR-2 (CAS 80388-04-1)
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