2-Chloro-3-(3,5-dimethyl-1H-pyrazol-1-yl)quinoxaline CAS 245039-37-6
| CAS No. | 245039-37-6 |
| Molecular Formula | C13H11ClN4 |
| Molecular Weight | 258.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H11ClN4, 2-Chloro-3-(3,5-dimethyl-1H-pyrazol-1-yl)quinoxaline contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 258.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-Chloro-3-(3,5-dimethyl-1H-pyrazol-1-yl)quinoxaline (CAS 245039-37-6), molecular formula C13H11ClN4 and molecular weight 258.71 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures 2-Chloro-3-(3,5-dimethyl-1H-pyrazol-1-yl)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 | C13H11ClN4 |
| Molecular Weight | 258.71 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
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- 3-(3-Chlorophenyl)-N-methylimidazo[1,2-a]pyrazin-8-amine (CAS 787591-13-3)
- 3-(Pentyloxy)-5-(trifluoromethoxy)phenylboronic acid (CAS 2096339-81-8)
- N-[9-[(2R,3S,4S,5R)-4-fluoro-3-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]purin-6-yl]benzamide (CAS 129054-67-7)
- 3-Bromo-2,4-dichloro-6-methylquinoline (CAS 1447949-15-6)
- 1-Amino-4-Hydroxy-2-Butanone HCl (CAS 87395-84-4)
- 5-fluoro-1-phenyl-1H-pyrazole-4-carboxylic acid (CAS 265986-57-0)
- 201740-78-5 Boc-Ala-OH-1-13C L-Alanine-1-13C, N-t-Boc derivative N-(tert-Butoxycarbonyl)-L-alanine-1-13C (CAS 201740-78-5)
- (E)-tert-Butyl 4-(4-phenylbut-3-en-1-yl)piperazine-1-carboxylate (CAS 1353990-96-1)
- 1-(3-(2-Fluorophenyl)-1,2,4-oxadiazol-5-yl)-3-(methylthio)propan-1-amine oxalate (CAS 1820705-98-3)
- 1-(Quinolin-4-yl)piperidin-3-amine (CAS 1305730-84-0)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
Why CATO?
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