2-(2-Nitrophenyl)-2-oxoacetic acid CAS 610-33-3
| CAS No. | 610-33-3 |
| Molecular Formula | C8H5NO5 |
| Molecular Weight | 195.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-(2-Nitrophenyl)-2-oxoacetic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
2-(2-Nitrophenyl)-2-oxoacetic acid (CAS 610-33-3) is a high-purity analytical reference standard with the molecular formula C8H5NO5 and a molecular weight of 195.13 g/mol.
Based on its molecular formula C8H5NO5, 2-(2-Nitrophenyl)-2-oxoacetic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 195.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C8H5NO5 |
| Molecular Weight | 195.13 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Nitrophenyl Standards
- 2-(3-Nitrophenyl)-2-oxoacetic acid (CAS 6330-40-1)
- 2-(3-Methyl-5-nitrophenyl)acetic acid (CAS 1261444-79-4)
- (R)-2-(4-nitrophenyl)propanoic acid (CAS 142927-07-9)
- (S)-2-(4-nitrophenyl)propanoic acid (CAS 142927-08-0)
- 2-(3-Methyl-4-nitrophenyl)acetic Acid (CAS 143665-37-6)
- 3-(3-Nitrophenyl)propionic Acid (CAS 1664-57-9)
- 3-(4-Nitrophenyl)propionic Acid (CAS 16642-79-8)
- 4-Nitrophenyl propionate (CAS 1956-06-5)
Recommended Standards
- (5-Cyano-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)acetic acid (CAS 56673-29-1)
- 2-Formyl-6-nitrobenzoic acid (CAS 18584-63-9)
- 2,4-Dioxo-1,2,3,4-tetrahydropyrrolo[1,2-a][1,3,5]triazine-7-carboxylic acid (CAS 54449-90-0)
- 5-Methoxy-4-nitrobenzo[c][1,2,5]oxadiazole (CAS 18333-74-9)
- 4-Amino-2-fluoronicotinaldehyde (CAS 1289119-17-0)
- [1,1'-Biphenyl]-3,3'-diol (CAS 612-76-0)
- (4-Ethyl-2-methylthiazol-5-yl)methanamine (CAS 1123169-53-8)
- (S)-2-(2-Pyrrolidinyl)-pyridine (CAS 22083-78-9)
- 2-(2-Ethoxy-4-formyl-6-iodophenoxy)-N-(m-tolyl)acetamide (CAS 552852-36-5)
- Methyl 5-cyano-2-cyclopropoxybenzoate (CAS 2768519-24-8)
- 3-(4-Chloro-3-methyl-1h-pyrazol-1-yl)-2-(methylamino)propanoic acid (CAS 1340320-74-2)
- 1-(Isoquinolin-1-ylmethyl)pyrrolidin-3-amine (CAS 1710282-51-1)
- 2-Bromo-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 1431330-20-9)
- Semaglutide impurity 229 (CAS CATO-C4X-2226229)
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