Quinoxaline-2-carbohydrazide CAS 54571-06-1
| CAS No. | 54571-06-1 |
| Molecular Formula | C9H8N4O |
| Molecular Weight | 188.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Quinoxaline-2-carbohydrazide (CAS 54571-06-1), a certified reference material (molecular formula C9H8N4O, MW 188.19 g/mol) for analytical method development and quality control.
The molecular framework of Quinoxaline-2-carbohydrazide (C9H8N4O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H8N4O |
| Molecular Weight | 188.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 4 |
Related Quinoxaline Standards
- Quinoxaline-6-carbohydrazide (CAS 175204-23-6)
- Methyl quinoxaline-5-carboxylate (CAS 6924-71-6)
- 3-Methyl-Quinoxaline-2-Carboxylic Acid (CAS 74003-63-7)
- Quinoxaline-5-carbonyl chloride (CAS 717871-86-8)
- Quinoxaline-6-carbonyl chloride (CAS 258503-93-4)
- Quinoxaline, 6-chloro-2-methoxy- (CAS 104152-39-8)
- Quinoxaline-2,3-dicarbonitrile (CAS 17132-92-2)
- Quinoxaline-2,3,6-triol (CAS 60729-17-1)
Recommended Standards
- N-phenyl-1H-1,2,3-triazole-5-carboxamide (CAS 936323-22-7)
- 2,3,5,6-TETRAFLUOROBENZENETHIOL 2,3,5,6-Tetrafluorothiophenol 769-40-4 AS04131 TIMTEC-BB SBB000230 (CAS 769-40-4)
- n-{[4-(1h-1,2,4-triazol-1-yl)phenyl]methylidene}hydroxylamine (CAS 920502-11-0)
- Cenobamate Impurity 62 (CAS 88404-27-7)
- Ethyl 2-(allylcarbamothioyl)hydrazine-1-carboxylate (CAS 263015-55-0)
- 5466-54-6 Disodium dimercaptomaleonitrile sodium (Z)-1,2-dicyanoethene-1,2-bis(thiolate) (CAS 5466-54-6)
- Mal-PEG5-Boc (CAS 2250216-91-0)
- β-D-Glucopyranuronosylamine (CAS 163659-65-2)
- 1-Isobutyl-1H-benzo[d][1,2,3]triazole-5-carboxylic acid (CAS 1019342-95-0)
- Thioctic Acid Impurity 51 (CAS 56535-97-8)
- 5-(Difluoromethyl)-2-methylbenzonitrile (CAS 1261618-13-6)
- 6-Bromo-2-methylimidazo[1,2-a]pyridine-3-carboxylic acid (CAS 81438-57-5)
- 2-(Piperidin-4-yl)-6-(pyrrolidin-1-yl)-[1,2,4]triazolo[1,5-a]pyridine (CAS 1422060-93-2)
- (D-Ala1)-Peptide T amide (CAS 106362-34-9)
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