Ethyl (3-nitropyridin-4-yl)carbamate CAS 90223-38-4
| CAS No. | 90223-38-4 |
| Molecular Formula | C8H9N3O4 |
| Molecular Weight | 211.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl (3-nitropyridin-4-yl)carbamate (CAS 90223-38-4), molecular formula C8H9N3O4 and molecular weight 211.17 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl (3-nitropyridin-4-yl)carbamate (C8H9N3O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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), Ethyl (3-nitropyridin-4-yl)carbamate 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 | C8H9N3O4 |
| Molecular Weight | 211.17 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- Methyl 2-[(3-nitropyridin-4-yl)amino]acetate (CAS 1040313-67-4)
- 145323-47-3 [Methyl(3-nitropyridin-2-yl)amino]acetic acid (CAS 145323-47-3)
- Methyl (5-nitropyridin-2-yl)glycinate (CAS 146294-97-5)
- (5-Nitropyridin-2-yl)alanine (CAS 7594-56-1)
- 3-((3-Nitropyridin-2-yl)amino)propanoic acid (CAS 866038-45-1)
- 3-((3-Nitropyridin-4-yl)amino)propanoic acid (CAS 710349-42-1)
- 3-((5-Nitropyridin-2-yl)amino)propanoic acid (CAS 866157-47-3)
- Ethyl (2-nitropyridin-3-yl)carbamate (CAS 55304-91-1)
Recommended Standards
- Ethyl (4-nitrophenyl) carbonate (CAS 6132-45-2)
- Dimethyl 5-hydroxypyridine-3,4-dicarboxylate (CAS 19804-07-0)
- Ethyl 2-amino-5-nitronicotinate (CAS 88312-65-6)
- Dimethyl 4-oxo-1,4-dihydropyridine-2,6-dicarboxylate (CAS 20443-03-2)
- 3-Hydroxy-3-(2-methoxynaphthalen-1-yl)propanenitrile (CAS 1533885-13-0)
- Ethyl 4-(2-oxo-2-((thiophen-2-ylmethyl)amino)acetamido)piperidine-1-carboxylate (CAS 1206991-53-8)
- 2-(6-Bromo-5-(difluoromethyl)-2-hydroxypyridin-3-yl)acetic acid (CAS 1805349-02-3)
- 5-Chloro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1073338-95-0)
- 4-(5-Amino-1H-indol-3-yl)cyclohexanone hydrochloride (CAS 1416439-27-4)
- 4-Androstene-3,17-dione-13c3 (CAS 327048-86-2)
- (S)-3,4-Dimethyloxazolidine-2,5-dione (CAS 58311-53-8)
- SAMS Peptide (CAS 125911-68-4)
- Tris(1-phenyl-1,3-butanediono)iron (CAS 14323-17-2)
- Liraglutide Sodium Salt (CAS 204656-20-2（free base）)
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