2-Nitrophenylpyruvic acid CAS 5461-32-5
| CAS No. | 5461-32-5 |
| Molecular Formula | C9H7NO5 |
| Molecular Weight | 209.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Nitrophenylpyruvic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Nitrophenylpyruvic acid (CAS 5461-32-5) is a high-purity analytical reference standard with the molecular formula C9H7NO5 and a molecular weight of 209.16 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 2-Nitrophenylpyruvic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 209.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Nitrophenylpyruvic 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 | C9H7NO5 |
| Molecular Weight | 209.16 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.) | 1958 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-Nitroisophthalamide (CAS 32114-73-1)
- 2-Nitroterephthalamide (CAS 50739-80-5)
- 2-Hydroxy-5-nitrocinnamic acid, 97% (CAS 50396-49-1)
- 3-(3-Nitrophenyl)-2-oxopropanoic acid (CAS 38712-57-1)
- 2-(4-Cyano-3-(difluoromethyl)-5-methylpyridin-2-yl)acetic acid (CAS 1805433-09-3)
- (6R,8AR)-6-amino-5-oxooctahydroindolizine-8a-carboxylic acid (CAS 172039-41-7)
- 2-(2-(4-Propionamidobenzoyl)hydrazine-1-carbonyl)benzoic acid (CAS 314764-20-0)
- 2-(Aminomethyl)-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-5-carboxylic acid (CAS 1361812-05-6)
- 1-(Ethylsulfonyl)piperidine-3-carboxamide (CAS 915882-68-7)
- 4-(3-Aminopropyl)-1,2,5-oxadiazole-3-carboxylic acid (CAS 884497-48-7)
- 4-[4-(2-Chloroacetyl)-1-piperazinyl]benzoic Acid (CAS 944886-14-0)
- Methyl 2-methylpiperidine-4-carboxylate hydrochloride (CAS 1646786-45-9)
- Pomalidomide-C4-acid (CAS 2225940-48-5)
- Acetyl Tripeptide-1 (CAS 350595-76-5)
Why CATO?
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