2,5-Dinitrophenol (Wetted with water >20%) CAS 329-71-5
| CAS No. | 329-71-5 |
| Molecular Formula | C6H4N2O5 |
| Molecular Weight | 184.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,5-Dinitrophenol (Wetted with water >20%).
2,5-Dinitrophenol (Wetted with water >20%) (CAS 329-71-5) is a high-purity analytical reference standard with the molecular formula C6H4N2O5 and a molecular weight of 184.11 g/mol.
2,5-Dinitrophenol (Wetted with water >20%) (C6H4N2O5) contains a carbohydrate-derived structure, an amide group. 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.
CATO manufactures 2,5-Dinitrophenol (Wetted with water >20%) 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.
Physical & Chemical Properties
| Molecular Formula | C6H4N2O5 |
| Molecular Weight | 184.11 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Dinitrophenol Standards
- 2,3-Dinitrophenol (CAS 66-56-8)
- 3,5-Dinitrophenol (CAS 586-11-8)
- 3,4-Dinitrophenol(wetted with water >15%) (CAS 577-71-9)
- 2,4-Dinitrophenol (CAS 51-28-5)
- 2,4-Dinitrophenol-d3 (CAS 93951-77-0)
- 3-Methyl-2,4-dinitrophenol (CAS 1817-66-9)
- 4-Methyl-2,3-dinitrophenol (CAS 68191-07-1)
- 4-Methyl-2,5-dinitrophenol (CAS 20294-52-4)
Recommended Standards
- 2,3-Pyrazinedicarboxylic acid, 1,6-dihydro-6-oxo- (CAS 73403-48-2)
- 3-(Trifluoromethoxy)tetrahydro-4H-pyran-4-one (CAS 2306277-15-4)
- (s)-4-Hydroxy-4-(trifluoromethyl)tetrahydro-2h-pyran-2-one (CAS 956398-58-6)
- 3,5-Dinitropyridin-2-amine (CAS 3073-30-1)
- N'-((1H-Indol-3-yl)methylene)-2-hydroxybenzohydrazide (CAS 10245-40-6)
- 3-(2,2-Dimethyl-3-(prop-2-yn-1-yloxy)propoxy)prop-1-yne (CAS 1428736-76-8)
- 3-Hydroxy-N-[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-pyridyl]benzamide (CAS 2246909-59-9)
- 3-Bromo-N-cyclohexyl-5-nitrobenzamide (CAS 941294-22-0)
- n-(1-Cyclopropylethyl)-3-phenylpropan-1-amine (CAS 1038278-65-7)
- LiChrospher<SUP>®</SUP> Si 60 (5 µm) (CAS 112926-00-8)
- 4-Diethylamino-piperidine (CAS 143300-64-5)
- 4-(2-(Bromomethyl)thiazol-4-yl)phenyl acetate (CAS 1301739-67-2)
- 4-Fluoro-3-methyl-N-(pentan-2-yl)aniline (CAS 1341335-16-7)
- Tirzepatide Impurity 24 X TFA Salt (CAS CATO-C4X-324024)
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