1-Ethyl-[1,2,4]triazolo[4,3-a]quinoxalin-4-amine CAS 91895-49-7
| CAS No. | 91895-49-7 |
| Molecular Formula | C11H11N5 |
| Molecular Weight | 213.24 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 1-Ethyl-[1,2,4]triazolo[4,3-a]quinoxalin-4-amine.
CATO supplies 1-Ethyl-[1,2,4]triazolo[4,3-a]quinoxalin-4-amine (CAS 91895-49-7), a certified reference material (molecular formula C11H11N5, MW 213.24 g/mol) for analytical method development and quality control.
The molecular framework of 1-Ethyl-[1,2,4]triazolo[4,3-a]quinoxalin-4-amine (C11H11N5) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C11H11N5 |
| Molecular Weight | 213.24 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 5 |
Related Ethyl Standards
- 6-Phenyl-[1,2,4]triazolo[1,5-b][1,2,4]triazin-7(3H)-one (CAS 89569-71-1)
- 5-{[1,2,4]triazolo[4,3-a]pyridin-3-yl}pentan-1-amine (CAS 1016835-11-2)
- 3-(3-Methyl-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)propanoic acid (CAS 933691-30-6)
- 5-Phenyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol (CAS 13322-69-5)
- 3-Phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6(5H)-one (CAS 20552-62-9)
- 3-Phenyl-[1,2,4]triazolo[5,1-c][1,2,4]triazin-4-amine (CAS 521300-68-5)
- 5-Phenyl-[1,2,4]triazolo[1,5-a]pyrimidin-7(1H)-one (CAS 34102-79-9)
- 7-Methyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 4919-10-2)
Recommended Standards
- 1-Amino-3-ethoxyisoquinoline-4-carbonitrile (CAS 74745-54-3)
- 1-Ethyl-3H-pyridazino[4,5-b]indol-4(5H)-one (CAS 90016-89-0)
- 1,8-Dimethylimidazo[1,2-a]quinoxalin-4(5H)-one (CAS 445430-61-5)
- 1-Phenyl-3-(pyridin-2-yl)urea (CAS 2327-17-5)
- 3-benzyl-1,4-diazepan-2-one (CAS 1540092-08-7)
- 6-Methoxyharmalan (CAS 3589-73-9)
- 5-Phenyl-1,3,4-thiadiazol-2-amine sulfate (CAS 340169-03-1)
- N-(2-Bromobenzylidene)aniline (CAS 41077-23-0)
- 2-Methoxy-5-{[(prop-2-en-1-yl)amino]methyl}phenol (CAS 1019561-00-2)
- 1-(3-Butoxy-4-fluorophenyl)ethanone (CAS 1443313-47-0)
- 2-(((4-Bromophenyl)amino)methylene)-5,5-dimethylcyclohexane-1,3-dione (CAS 305864-19-1)
- 2-((5-Amino-1,3,4-thiadiazol-2-yl)amino)-2-oxoacetic acid (CAS 79071-53-7)
- 1,1,1-Trifluoro-N-mesityl-N-((trifluoromethyl)sulfonyl)methanesulfonamide (CAS 950578-85-5)
- His-Aib-Semaglutide (CAS CATO-C4X-2226220)
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