4-((2-Nitrophenyl)amino)-4-oxobutanoic acid CAS 25589-42-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 25589-42-8 |
| Molecular Formula | C10H10N2O5 |
| Molecular Weight | 238.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-((2-Nitrophenyl)amino)-4-oxobutanoic acid (CAS 25589-42-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H10N2O5. Molecular weight: 238.20 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H10N2O5 |
| Molecular Weight | 238.20 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.) | 1964 |
| Nitrogen Atoms | 2 |
Related Nitrophenyl Standards
- 2-[(3-Nitrophenyl)formamido]propanoic Acid (CAS 117958-15-3)
- Ethyl 2-((2-nitrophenyl)amino)-2-oxoacetate (CAS 17293-40-2)
- 4-((3-Nitrophenyl)amino)-4-oxobutanoic acid (CAS 1797-93-9)
- (4-Acetyl-2-nitrophenyl)glycine (CAS 4662-68-4)
- 2-[(4-methyl-3-nitrophenyl)formamido]acetic acid (CAS 298186-73-9)
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- methyl 2-[(4-nitrophenyl)carbamoyl]acetate (CAS 328011-26-3)
Recommended Standards
- 3-Acetamido-4-methyl-2-nitrobenzoic acid (CAS 7356-52-7)
- 3-(3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)propanoic acid (CAS 857228-20-7)
- 4-(3-(4-Methyl-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazol-5-yl)butanoic acid (CAS 924871-26-1)
- 4-Methoxy-2,6-dimethylbenzonitrile (CAS 19111-77-4)
- methyl 3-amino-1-methyl-1H-pyrazole-5-carboxylate (CAS 89088-56-2)
- 1-[(4-Methoxyphenyl)methyl]-2,3,4,5-tetrahydro-1H-1-benzazepin-2-one (CAS 303987-99-7)
- (R)-1-(m-tolyl)butan-1-amine hydrochloride (CAS 698378-44-8)
- Methyl 2-acetylthiazole-4-carboxylate (CAS 76275-87-1)
- 2-(Bromomethyl)-7-phenylbenzo[d]thiazole (CAS 1227629-45-9)
- Des-Pro36-Tirzepatide (CAS CATO-CPTD788937)
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