7-Nitro-2(1H)-quinoxalinone CAS 89898-96-4
| CAS No. | 89898-96-4 |
| Molecular Formula | C8H5N3O3 |
| Molecular Weight | 191.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Nitro-2(1H)-quinoxalinone 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.
CATO supplies 7-Nitro-2(1H)-quinoxalinone (CAS 89898-96-4), a certified reference material (molecular formula C8H5N3O3, MW 191.14 g/mol) for analytical method development and quality control.
Structurally, 7-Nitro-2(1H)-quinoxalinone (C8H5N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 191.14 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H5N3O3 |
| Molecular Weight | 191.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
Related Nitro Standards
- 4-Nitro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde (CAS 1000340-43-1)
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- 3-Nitro-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde (CAS 1167056-97-4)
- 3-Nitro-1H-pyrrolo[2,3-b]pyridine-4-carbaldehyde (CAS 1190315-23-1)
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- 6-Nitro-1H-pyrrolo[3,2-b]pyridine-3-carbaldehyde (CAS 1190317-20-4)
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Recommended Standards
- 7-Nitro-1H-indazole-3-carbaldehyde (CAS 887588-77-4)
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- 7-Hydroxy-5-oxo-5H-pyrano[4,3-b]pyridine-8-carbaldehyde (CAS 399017-32-4)
- 7-Nitrocinnolin-4-ol (CAS 412338-77-3)
- 2-[(5-methyl-1,2-oxazol-4-yl)formamido]acetic acid (CAS 143469-00-5)
- 7-fluoro-6-(3,3,3-trifluoroprop-1-ynyl)-1H-quinazolin-4-one (CAS 2546453-89-6)
- (4-Bromo-3-chlorophenyl)hydrazine (CAS 103722-57-2)
- Dimethyl 1-benzyl-1H-imidazole-4,5-dicarboxylate (CAS 321970-25-6)
- 3-Methoxy-N-(4-propoxybenzyl)aniline (CAS 1036543-63-1)
- Cytarabine impurity 37 (CAS CATO-C4X-200537)
- N-(1-hydroxypropan-2-yl)benzamide (CAS 24629-34-3)
- bicyclo[4.1.0]heptan-3-amine (CAS 78293-51-3)
- 8-Chloro-2H-pyrano[2,3-c]pyridin-4(3H)-one (CAS 2734925-28-9)
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Why CATO?
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