3-Nitro-p-cresol CAS 2042-14-0
| CAS No. | 2042-14-0 |
| Molecular Formula | C7H7NO3 |
| Molecular Weight | 153.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 153.14 g/mol gives 3-Nitro-p-cresol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Nitro-p-cresol (CAS 2042-14-0) is a high-purity analytical reference standard with the molecular formula C7H7NO3 and a molecular weight of 153.14 g/mol.
3-Nitro-p-cresol (C7H7NO3) 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.
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 | C7H7NO3 |
| Molecular Weight | 153.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| 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.) | 1957 |
| Nitrogen Atoms | 1 |
Related Nitro Standards
- N-Nitro-4-pyridinemethanamine (CAS 1195605-33-4)
- 3-Nitro-1-(prop-2-en-1-yl)-1h-pyrazole (CAS 1240572-49-9)
- 4-Nitro-1-(prop-2-en-1-yl)-1h-pyrazole (CAS 1240577-26-7)
- 5-Nitro-o-cresol (CAS 5428-54-6)
- 3-Nitro-1,2-phenylenediamine (CAS 3694-52-8)
- 5-Methyl-4-nitro-2-pyridinamine (CAS 895520-03-3)
- 4-Nitro-1,2-phenylenediamine (CAS 99-56-9)
- 4-Nitro-m-phenylenediamine (CAS 5131-58-8)
Recommended Standards
- 3-Hydroxyanthranilic Acid (CAS 548-93-6)
- 5-Hydroxyanthranilic Acid (CAS 394-31-0)
- 2-Nitrobenzyl Alcohol (CAS 612-25-9)
- 3,5-Dihydroxybenzamide (CAS 3147-62-4)
- Ethyl 2-(5-chloro-6-methylpyridin-3-yl)acetate (CAS 1261602-33-8)
- 2-(4-(Tetrahydro-2H-pyran-4-yl)piperazin-1-yl)propanoic acid (CAS 1404626-19-2)
- 5-Bromo-2-(2-ethoxyethoxy)benzenesulfonamide (CAS 1275455-90-7)
- 2-Chloroquinoline-6-carbonitrile (CAS 78060-54-5)
- 2-Chloro-5-iodo-3-methoxypyridine (CAS 1352881-81-2)
- 1-(3-Chlorophenyl)cyclopropan-1-ol (CAS 43187-67-3)
- 1-(2,2-difluoroethyl)-3-nitro-1h-1,2,4-triaZole (CAS 1018144-04-1)
- 5-(Chlorodifluoromethyl)-1-(2-hydroxyethyl)-3-(trifluoromethyl)-1h-pyrazole-4-carboxylic acid (CAS 1421601-49-1)
- 7-Benzyl-6-methoxy-7H-purine (CAS 21802-76-6)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
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