3,4-Dinitrobenzoic Acid CAS 528-45-0
| CAS No. | 528-45-0 |
| Molecular Formula | C7H4N2O6 |
| Molecular Weight | 212.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,4-Dinitrobenzoic Acid (CAS 528-45-0), a certified reference material (molecular formula C7H4N2O6, MW 212.12 g/mol) for analytical method development and quality control.
The molecular framework of 3,4-Dinitrobenzoic Acid (C7H4N2O6) is characterized by a carbohydrate-derived structure, an amide group. 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).
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), 3,4-Dinitrobenzoic 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 | C7H4N2O6 |
| Molecular Weight | 212.12 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, water |
| 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 |
Related Dinitrobenzoic Standards
Recommended Standards
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- Diazodinitrophenol (CAS 4682-03-5)
- N-Ethyl-N-((3-methoxydibenzo[b,d]furan-4-yl)methyl)ethanamine (CAS 42840-14-2)
- tert-Butyl 4-(3-(6-chloropyridin-3-yl)-2-methyl-3-oxopropyl)piperazine-1-carboxylate (CAS 886365-66-8)
- 1-isopropylcyclopropane-1-carboxylic acid (CAS 104131-92-2)
- Ethyl 3-bromo-7-methyl-8-nitroimidazo[1,2-a]pyridine-2-carboxylate (CAS 132272-73-2)
- Methyl 2-cyclopentylthiazole-5-carboxylate (CAS 1369840-90-3)
- 3-Methyl-1-(m-tolyl)butan-1-one (CAS 116530-62-2)
- 1-(4-Bromophenyl)-3-(3-chloro-5-fluorophenyl)propan-1-one (CAS 898750-49-7)
- 4-Hydroxy-1h,2h-pyrrolo[1,2-d][1,2,4]triazin-1-one (CAS 50269-88-0)
- Daprodustat Impurity 18 (CAS 117043-46-6)
- Liraglutide Impurity 5 TFA Salt (CAS CATO-C4X-19925)
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