4-[(4-Methoxyphenyl)sulfanyl]-[1,2,4]triazolo[4,3-a]quinoxaline CAS 338420-32-9
| CAS No. | 338420-32-9 |
| Molecular Formula | C16H12N4OS |
| Molecular Weight | 308.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-[(4-Methoxyphenyl)sulfanyl]-[1,2,4]triazolo[4,3-a]quinoxaline (CAS 338420-32-9), molecular formula C16H12N4OS and molecular weight 308.36 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 4-[(4-Methoxyphenyl)sulfanyl]-[1,2,4]triazolo[4,3-a]quinoxaline is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 308.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 4-[(4-Methoxyphenyl)sulfanyl]-[1,2,4]triazolo[4,3-a]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 | C16H12N4OS |
| Molecular Weight | 308.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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- 6-(3-Methoxyphenyl)-2-(piperidin-4-yl)-[1,2,4]triazolo[1,5-a]pyridine (CAS 1422139-80-7)
- 2-(2-Methoxyphenyl)-5-methyl-7-(pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine (CAS 950345-92-3)
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Recommended Standards
- 4-(1-(Methylsulfonyl)-4-(pyridin-2-yl)-1H-pyrazol-3-yl)morpholine (CAS 303995-27-9)
- 4-benzyl-1-mercapto[1,2,4]triazolo[4,3-a]quinazolin-5(4H)-one (CAS 380663-73-0)
- 1-Mercapto-4-p-tolyl-4H-[1,2,4]triazolo[4,3-a]quinazolin-5-one (CAS 67442-92-6)
- 5-[(1,2-Benzoxazol-3-yl)methyl]-4-phenyl-4H-1,2,4-triazole-3-thiol (CAS 860785-59-7)
- 7-(Trifluoromethyl)pyrido[3,2-d]pyrimidine-2,4-diamine (CAS 338407-52-6)
- 2-(2,2-Dimethyltetrahydro-2H-pyran-4-yl)acetic acid (CAS 14390-07-9)
- 2-Pentenenitrile (CAS 26294-98-4)
- 2-(Aminomethyl)-3-(difluoromethyl)-5-methylpyridine-4-carboxaldehyde (CAS 1805072-53-0)
- (2E)-N-(2,4-Difluorophenyl)-3-(4-ethoxyphenyl)prop-2-enamide (CAS 329777-48-2)
- (1H-Pyrrolo[3,2-c]pyridin-2-yl)methanamine (CAS 438571-18-7)
- 1-Azido-2-fluoro-4-methylbenzene (CAS 864866-32-0)
- (3'-Bromo-[1,1'-biphenyl]-4-yl)(methyl)sulfane (CAS 844856-40-2)
- 4-(bromomethyl)-2-fluoro-1-methoxybenzene (CAS 331-61-3)
- Antifreeze Polypeptide 6 (winter flounder) trifluoroacetate salt (CAS 122604-16-4)
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