4-[(4-nitrophenyl)amino]butanoic acid CAS 87962-89-8
| CAS No. | 87962-89-8 |
| Molecular Formula | C10H12N2O4 |
| Molecular Weight | 224.21 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 4-[(4-nitrophenyl)amino]butanoic acid.
4-[(4-nitrophenyl)amino]butanoic acid (CAS 87962-89-8) is a high-purity analytical reference standard with the molecular formula C10H12N2O4 and a molecular weight of 224.21 g/mol.
4-[(4-nitrophenyl)amino]butanoic acid (C10H12N2O4) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H12N2O4 |
| Molecular Weight | 224.21 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 | 2 |
Related nitrophenyl Standards
- 2-Methyl-2-[(4-nitrophenyl)amino]propanoic acid (CAS 1215813-40-3)
- methyl 2-[(4-nitrophenyl)amino]propanoate (CAS 1311383-63-7)
- MEthyl 2-[(2-nitrophenyl)amino]propanoate (CAS 1396964-74-1)
- 3-(3-Nitrophenyl)benzonitrile (CAS 192699-67-5)
- 4-(3-nitrophenyl)benzonitrile (CAS 39117-72-1)
- 4-[(2-nitrophenyl)amino]butanoic acid (CAS 56636-90-9)
- Ethyl 2-[(2-nitrophenyl)amino]acetate (CAS 5428-05-7)
- Methyl 3-[(2-nitrophenyl)amino]propanoate (CAS 38584-59-7)
Recommended Standards
- 4-Formyl-2,6-dimethoxyphenyl Acetate (CAS 53669-33-3)
- 4,5-diethyl pyrimidine-4,5-dicarboxylate (CAS 36978-53-7)
- 4'-Nitro-[1,1'-biphenyl]-4-carbonitrile (CAS 31835-63-9)
- 4,5,6-Trimethoxy-2-benzofuran-1(3H)-one (CAS 4087-80-3)
- 1-(3-Fluorobenzyl)-3-methyl-1h-pyrazol-5-amine (CAS 1248617-48-2)
- 1-(1-Benzyl-3,5-dimethyl-1H-pyrazol-4-yl)ethanol (CAS 1490755-93-5)
- 2-Bromo-N-methoxy-N-methylthiazole-4-carboxamide (CAS 888314-10-1)
- 2-Pyridinecarboxylic acid, 5-methyl-, 1-oxide (CAS 31283-69-9)
- tert-Butyl 4-hydroxy-[1,4'-bipiperidine]-1'-carboxylate (CAS 367500-88-7)
- 5-Chloro-4-fluoro-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 1807972-53-7)
- 6-Chloro-5-methyl-2-(methylthio)pyrimidine-4-carboxylic acid (CAS 6623-83-2)
- Isopropyl hexadecylcarbamate (CAS 6298-78-8)
- Tert-butyl methyl(piperidin-2-ylmethyl)carbamate (CAS 1259509-08-4)
- Semaglutide impurity 204 (CAS CATO-C4X-2226204)
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