1-Methyl-4-nitro-1h-pyrrole-2-carboxamide CAS 13138-77-7
| CAS No. | 13138-77-7 |
| Molecular Formula | C6H7N3O3 |
| Molecular Weight | 169.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 1-Methyl-4-nitro-1h-pyrrole-2-carboxamide (CAS 13138-77-7), a certified reference material (molecular formula C6H7N3O3, MW 169.14 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H7N3O3, 1-Methyl-4-nitro-1h-pyrrole-2-carboxamide contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 169.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H7N3O3 |
| Molecular Weight | 169.14 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 1-(1-Methyl-4-nitro-1h-pyrazol-5-yl)ethan-1-one (CAS 1006437-81-5)
- 1-(3-Nitro-1H-pyrazol-1-yl)propan-2-one (CAS 131394-08-6)
- 2-Nitro-6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazine (CAS 1333508-92-1)
- 1-(1-methyl-3-nitro-1H-pyrazol-5-yl)ethan-1-one (CAS 1368382-45-9)
- 4-Nitro-1-(oxiran-2-ylmethyl)-1h-pyrazole (CAS 137079-02-8)
- 1-(1-Methyl-4-nitro-1h-pyrazol-3-yl)ethan-1-one (CAS 137890-10-9)
- 4-Nitro-1-(oxetan-3-yl)-1H-pyrazole (CAS 1393100-37-2)
- 1-(4-Nitro-1h-pyrazol-1-yl)propan-2-one (CAS 32407-65-1)
Recommended Standards
- trans-2-methyl-6-(trifluoromethyl)morpholine (CAS 1309444-01-6)
- 2,2,2-Trifluoro-1-(pyrrolidin-2-yl)ethan-1-ol (CAS 1306310-33-7)
- 1,1'-(5-Oxo-1H-1,2,4-triazole-1,4(5H)-diyl)diethanone (CAS 131426-05-6)
- 1-(2,2,2-Trifluoroethyl)pyrrolidin-3-ol (CAS 1290042-76-0)
- 1-(1H-Indol-3-yl)-3-(3-morpholinopropyl)urea (CAS 900006-47-5)
- (S)-2-amino-3-methyl-3-(tritylthio)butanoic acid (CAS 150025-01-7)
- 1-Methyl-5-nitro-1H-pyrazol-4-amine (CAS 89607-16-9)
- 2-(4-Dimethoxymethyl-2-nitro-phenyl)-malonic acid dimethyl ester (CAS 2097068-74-9)
- N-[4-(Acetylamino)phenyl]-2-chloro-2-phenylacetamide (CAS 1094449-04-3)
- 1-(2-Fluorobenzyl)-4-iodo-1H-pyrazole (CAS 1339591-78-4)
- 2-(((1-(2-Hydroxyethyl)-1H-pyrazol-3-yl)amino)methyl)benzoic acid hydrochloride (CAS 1856021-36-7)
- Gallic Acid Impurity 1 (CAS 1782069-25-3)
- 5-Fluoropyridine-2-carboxylic acid tert-butyl ester (CAS 1379037-04-3)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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