4-Hydroxy-3-imino-1-oxidoquinoxalin-1-ium-2-carbonitrile CAS 1177429-33-2
| CAS No. | 1177429-33-2 |
| Molecular Formula | C9H6N4O2 |
| Molecular Weight | 202.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Hydroxy-3-imino-1-oxidoquinoxalin-1-ium-2-carbonitrile 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.
4-Hydroxy-3-imino-1-oxidoquinoxalin-1-ium-2-carbonitrile (CAS 1177429-33-2) is a high-purity analytical reference standard with the molecular formula C9H6N4O2 and a molecular weight of 202.17 g/mol.
4-Hydroxy-3-imino-1-oxidoquinoxalin-1-ium-2-carbonitrile (C9H6N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C9H6N4O2 |
| Molecular Weight | 202.17 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 4 |
Related Hydroxy Standards
- 4-Hydroxy-1-oxo-1,2-dihydroisoquinoline-3-carboxamide (CAS 99275-67-9)
- 5-Hydroxy-2H-furo[2,3-h]chromen-2-one (CAS 21339-45-7)
- 4-Hydroxy-3-nitrophenylacetic Acid-D5 (CAS 929709-59-1)
- (4-Ethyl-3-hydroxy-5-oxotetrahydrofuran-3-yl)methyl acetate (CAS 549545-98-4)
- 2-Hydroxy-4-(trifluoromethyl)pyridine-3-acetonitrile (CAS 1227514-86-4)
- 2-Hydroxy-6-(trifluoromethyl)pyridine-4-acetonitrile (CAS 1227514-99-9)
- 2-Hydroxy-3-(trifluoromethyl)pyridine-4-acetonitrile (CAS 1227576-31-9)
- 6-Hydroxy-2-(trifluoromethyl)pyridine-3-acetonitrile (CAS 1227576-37-5)
Recommended Standards
- Cinacalcet Impurity 66 (CAS 113048-69-4)
- Tyrphostin 25 (CAS 118409-58-8)
- 1-Ethenyl-4-(2,2,2-trifluoroethoxy)benzene (CAS 111144-97-9)
- Methyl 5-cyanofuro[2,3-b]pyridine-2-carboxylate (CAS 1198420-95-9)
- 4-Nitrobenzyl[2r-(2alpha,5beta,6alpha,7beta)]-3-methylene-8-oxo-7-(phenoxyacetamido)-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylate5-oxide (CAS 60771-27-9)
- 1-N-Ethyl-4-methylbenzene-1,2-diamine (CAS 115835-41-1)
- 1-((Difluoromethoxy)methyl)-N-methylcyclopropan-1-amine hydrochloride (CAS 2521632-75-5)
- 7-[(E)-2-(4-Fluorophenyl)ethenyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 338793-23-0)
- 1-(4-Chlorophenyl)-5-((pyrimidin-2-ylthio)methyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1416346-96-7)
- 4-Methoxy-2,3-dihydro-1H-indene-5-carboxylic acid (CAS 91143-09-8)
- Tetrahydrofurfuryl alcohol (CAS 97-99-4)
- 2-(2,4-Dimethoxyphenyl)quinoline-4-carboxylic acid (CAS 313704-08-4)
- Azilsartan Impurity 63 (CAS 985638-55-8)
- α Bag Cell Peptide (1-9) (CAS 87549-52-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com