3-Hydroxy-5-nitrobenzonitrile CAS 929000-02-2
| CAS No. | 929000-02-2 |
| Molecular Formula | C7H4N2O3 |
| Molecular Weight | 164.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Hydroxy-5-nitrobenzonitrile is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Hydroxy-5-nitrobenzonitrile (CAS 929000-02-2) is a high-purity analytical reference standard with the molecular formula C7H4N2O3 and a molecular weight of 164.12 g/mol.
The molecular framework of 3-Hydroxy-5-nitrobenzonitrile (C7H4N2O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C7H4N2O3 |
| Molecular Weight | 164.12 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Hydroxy Standards
- 4-Hydroxy-2-nitrobenzonitrile (CAS 1093203-96-3)
- 3-Hydroxy-2-nitrobenzonitrile (CAS 129298-23-3)
- 5-Hydroxy-2-nitrobenzonitrile (CAS 13589-74-7)
- 3-Hydroxy-4-nitrobenzonitrile (CAS 18495-15-3)
- 2-Hydroxy-1H-pyrrolo[3,4-c]pyridine-1,3(2H)-dione (CAS 23439-88-5)
- 2-Hydroxy-3-nitrobenzonitrile (CAS 28177-79-9)
- 2-Hydroxy-4-nitrobenzonitrile (CAS 39835-14-8)
- 2-Hydroxy-5-nitrobenzonitrile (CAS 39835-09-1)
Recommended Standards
- 3-(1H-Pyrazol-1-yl)furan-2,5-dione (CAS 2213-96-9)
- 3-Nitro-2H-pyrazolo[3,4-c]pyridine (CAS 76006-15-0)
- 2-Methylfuro[3,4-d]pyrimidine-5,7-dione (CAS 241469-87-4)
- 3-Nitroimidazo[1,2-a]pyrimidine (CAS 798568-24-8)
- 3-(Methylthio)-1H-pyrazole (CAS 774157-81-2)
- 5-Chloro-N-(4-chlorophenyl)-2-hydroxybenzamide (CAS 1147-98-4)
- 4-((1H-Benzo[d]imidazol-1-yl)methyl)thiophene-2-carbaldehyde (CAS 883291-27-8)
- 1-((1H-Imidazol-1-yl)methyl)-1H-benzo[d]imidazole (CAS 159064-01-4)
- CRF (6-33) (human, rat) (CAS 120066-38-8)
- Acetylcysteine Impurity 15 HCl (CAS CATO-C4X-153215)
- IDPC-4F (CAS 2373324-10-6)
- 7-Methyl-[1,2,4]triazolo[4,3-a]pyrimidin-3-amine (CAS 117888-93-4)
- (S)-1-Fmoc-2-benzylpyrrolidine-2-carboxylic acid (CAS 1802938-33-5)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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