5-Nitro-1H-pyrrole-3-carboxylic acid CAS 858271-28-0
| CAS No. | 858271-28-0 |
| Molecular Formula | C5H4N2O4 |
| Molecular Weight | 156.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Nitro-1H-pyrrole-3-carboxylic acid (CAS 858271-28-0), a certified reference material (molecular formula C5H4N2O4, MW 156.10 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H4N2O4, 5-Nitro-1H-pyrrole-3-carboxylic acid contains a carbohydrate-derived structure, an amide group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 156.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 5-Nitro-1H-pyrrole-3-carboxylic 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 | C5H4N2O4 |
| Molecular Weight | 156.10 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Nitro Standards
- 1-(3-Nitro-1H-1,2,4-triazol-1-yl)ethanone (CAS 129053-61-8)
- 2-Nitro-1H-pyrrole-3-carboxylic acid (CAS 36131-59-6)
- 3-Nitro-1h-pyrazole-4-carboxamide (CAS 39205-91-9)
- 3-Nitro-1h-pyrazole-5-carboxamide (CAS 297149-32-7)
- 4-Nitro-1H-pyrazole-3-carboxamide (CAS 65190-36-5)
- 4-nitro-1H-pyrrole-2-carboxylic acid (CAS 5930-93-8)
- 5-Nitro-1H-imidazole-4-carboxamide (CAS 65865-80-7)
- 2-Methyl-5-nitro-1-nitroso-1H-imidazole (CAS CATO-C3D-26194)
Recommended Standards
- 6-Amino-4-oxo-4,5-dihydro-1,3,5-triazine-2-carboxylic acid (CAS 42240-01-7)
- 5,6-Dihydroxypyrimidine-4-carboxylic acid (CAS 52412-10-9)
- 6-Amino-5-nitropyrimidin-2(1H)-one (CAS 69099-99-6)
- 5,5,5-Trifluorovaleric Acid (CAS 407-62-5)
- 5-chloro-2H-[1,2,3]triazolo[4,5-d]pyrimidine (CAS 2634677-10-2)
- 3-[(1R)-3-[bis(1-methylethyl)amino]-1-phenylpropyl]-4-hydroxy-Benzoic acid methyl ester (CAS 214601-17-9)
- n-Isobutyl-2-methylpyridin-3-amine (CAS 1510381-72-2)
- 2-(Aminoethyl)-1-N-Boc-pyrrolidine (CAS 370069-29-7)
- 3-methyl-5-(piperazin-1-ylmethyl)-1,2,4-oxadiazole dihydrochloride (CAS 1797807-85-2)
- tert-Butyl 4-(1-mercaptoethyl)piperidine-1-carboxylate (CAS 1138331-84-6)
- Ceftazidime Impurity 94 (CAS CATO-C4X-121294)
- (Oxybis(4,1-phenylene))bis(trimethylsilane) (CAS 18055-71-5)
- 1-Bromo-4-fluoro-2,3-dihydro-1h-indene (CAS 1188171-96-1)
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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