2,4-Dinitrophenylacetic acid CAS 643-43-6
| CAS No. | 643-43-6 |
| Molecular Formula | C8H6N2O6 |
| Molecular Weight | 226.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 226.14 g/mol gives 2,4-Dinitrophenylacetic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,4-Dinitrophenylacetic acid (CAS 643-43-6) is a high-purity analytical reference standard with the molecular formula C8H6N2O6 and a molecular weight of 226.14 g/mol.
2,4-Dinitrophenylacetic acid (C8H6N2O6) 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. 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.
As a certified reference material (CRM), 2,4-Dinitrophenylacetic acid 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.
Physical & Chemical Properties
| Molecular Formula | C8H6N2O6 |
| Molecular Weight | 226.14 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 |
| 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 | 2 |
Recommended Standards
- 4'-Hydroxy-3',5'-dinitroacetophenone (CAS 52129-61-0)
- 5-(2,4,6-Trifluorophenyl)pyrimidin-2-ol (CAS 1111108-58-7)
- 3-Methyl-2,6-dinitrobenzoic acid (CAS 3478-09-9)
- (R)-2-(1-Amino-2,2,2-trifluoroethyl)-3,4-difluoroaniline (CAS 1241680-94-3)
- N-(2,4-dimethylphenyl)-2-((5-phenyl-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 332101-17-4)
- 1,3,8-Triaza-spiro[4.5]decan-4-one hcl (CAS 1958055-70-3)
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