2-Amino-4-Nitrobenzoic Acid CAS 619-17-0
| CAS No. | 619-17-0 |
| Molecular Formula | C7H6N2O4 |
| Molecular Weight | 182.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Amino-4-Nitrobenzoic Acid (CAS 619-17-0), molecular formula C7H6N2O4 and molecular weight 182.13 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Amino-4-Nitrobenzoic Acid (C7H6N2O4) is characterized by an amino-acid-derived structure, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C7H6N2O4 |
| Molecular Weight | 182.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 3-Amino-2-nitrobenzoic acid (CAS 116465-92-0)
- 2-Amino-3-nitrobenzoic Acid (CAS 606-18-8)
- 3-Amino-4-nitrobenzoic acid (CAS 6968-22-5)
- 3-Amino-5-nitrobenzoic Acid (CAS 618-84-8)
- 4-Amino-2-nitrobenzoic Acid (CAS 610-36-6)
- 4-Amino-1-(2,2,2-trifluoroethyl)pyrrolidin-2-one (CAS 1153905-27-1)
- 3-Amino-6-(trifluoromethyl)piperidin-2-one (CAS 1214004-16-6)
- 3-Amino-1-(2,2,2-trifluoroethyl)pyrrolidin-2-one (CAS 1250382-97-8)
Recommended Standards
- 3,4-Dinitrotoluene (CAS 610-39-9)
- 2-Hydroxyterephthalic Acid (CAS 636-94-2)
- 2,5-Dinitrotoluene (CAS 619-15-8)
- 7-(trifluoromethyl)-1,4-diazepan-5-one (CAS 1146290-50-7)
- 2-(2-Thiazolylthio)acetic Acid (CAS 5685-16-5)
- 2-(3,5-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)propan-2-ol (CAS 1395285-39-8)
- 5,6,7-Trifluoro-2,3-dihydro-1h-inden-1-one (CAS 1257844-57-7)
- Curcumin-d6 (CAS 1246833-26-0)
- 3-(Hydroxymethyl)benzo[d][1,2,3]triazin-4(3H)-one (CAS 24310-40-5)
- 3-(piperidin-3-yl)-1H-pyrazole-4-carboxamide (CAS 1803586-13-1)
- (7-Bromo-9,9-dihexyl-9H-fluoren-2-yl)boronic acid (CAS 934762-26-2)
- cis-Piperidine-3,5-diyldimethanol hydrochloride (CAS 1609396-20-4)
- 5-Methoxy-1H-indol-4-amine (CAS 431046-37-6)
- (Des-Thr?)-Glucagon trifluoroacetate salt (CAS 1802078-27-8)
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