(3-Oxo-1,2,3,4-tetrahydroquinoxalin-2-ylidene)amino 2-chloroacetate CAS 1221728-97-7
| CAS No. | 1221728-97-7 |
| Molecular Formula | C10H8ClN3O3 |
| Molecular Weight | 253.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3-Oxo-1,2,3,4-tetrahydroquinoxalin-2-ylidene)amino 2-chloroacetate (CAS 1221728-97-7), molecular formula C10H8ClN3O3 and molecular weight 253.64 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3-Oxo-1,2,3,4-tetrahydroquinoxalin-2-ylidene)amino 2-chloroacetate (C10H8ClN3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 253.64 g/mol, it falls into the medium-molecular-weight range. 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).
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.
As a certified reference material (CRM), (3-Oxo-1,2,3,4-tetrahydroquinoxalin-2-ylidene)amino 2-chloroacetate 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 | C10H8ClN3O3 |
| Molecular Weight | 253.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Oxo Standards
- 2-(3-Oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)-N-propylacetamide (CAS 1008189-19-2)
- 2-(3-Oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)-n-phenylacetamide (CAS 36932-40-8)
- 1-(1-Ethyl-1,2,3,4-tetrahydroquinoxalin-2-yl)-N,N-dimethylmethanamine (CAS 743408-33-5)
- 2-(3-Oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetic acid (CAS 136584-14-0)
- 2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-1-yl)acetic acid (CAS 80310-02-7)
- 1-(1-Methyl-1,2,3,4-tetrahydroquinoxalin-5-yl)ethanone (CAS 89334-27-0)
- 3-Ethyl-5,6,7,8-tetrahydroquinoxalin-2-ol (CAS 113902-41-3)
- 1-(1,2,3,4-Tetrahydroquinoxalin-5-yl)ethanone (CAS 89334-22-5)
Recommended Standards
- Ethyl 3-(2-chloropyridin-4-yl)-1,2,4-oxadiazole-5-carboxylate (CAS 1219571-90-0)
- 2-(3-(4-Chlorophenyl)-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)acetic acid (CAS 1228650-22-3)
- 3-(Carboxymethyl)-5-chloro-1H-indole-2-carboxylic acid (CAS 120716-95-2)
- 3-(3-(2-Chloropyridin-4-yl)-1,2,4-oxadiazol-5-yl)propanoic acid (CAS 1255099-24-1)
- (S)-tert-Butyl 1-(cyclopropanecarbonyl)pyrrolidin-3-ylcarbamate (CAS 1286209-11-7)
- 4-Chloro-3-iodopyridine hydrochloride (CAS 1987263-61-5)
- 1-(5-Fluoropyridin-2-yl)cyclopropan-1-amine dihydrochloride (CAS 1384264-25-8)
- 1-(2,4-Dimethoxy-5-(phenylselanyl)phenyl)ethanone (CAS 646472-75-5)
- Nicorandil Impurity 21 1Nitrate 2Formate (CAS CATO-C4X-190721)
- 6-Bromo-4,4,7-trimethyl-3,4-dihydroquinolin-2(1H)-one (CAS 203856-44-4)
- N-Benzyl-2-ethoxy-N,N-dimethyl-2-oxoethanaminium iodide (CAS 764654-78-6)
- 1-(4-Chloro-2-nitrophenyl)-N-methylmethanamine (CAS 1099708-22-1)
- (R)-3-[1-(1-Acryloylpiperidin-3-yl)-4-amino-1H-pyrazolo[3,4-d]pyrimidin-3-yl]-N-(4-isopropyl-5-methylphenyl)benzamide (CAS 1407966-77-1)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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