4-Methyl-2-nitrobenzoic Acid CAS 27329-27-7
| CAS No. | 27329-27-7 |
| Molecular Formula | C8H7NO4 |
| Molecular Weight | 181.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Methyl-2-nitrobenzoic Acid 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.
CATO supplies 4-Methyl-2-nitrobenzoic Acid (CAS 27329-27-7), a certified reference material (molecular formula C8H7NO4, MW 181.15 g/mol) for analytical method development and quality control.
The molecular framework of 4-Methyl-2-nitrobenzoic Acid (C8H7NO4) 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 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.
CATO manufactures 4-Methyl-2-nitrobenzoic Acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H7NO4 |
| Molecular Weight | 181.15 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.) | 1964 |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- 3-Methyl-5-nitrobenzoic Acid (CAS 113882-33-0)
- 4-methyl-3-nitrobenzoic acid (CAS 96-98-0)
- 2-Methyl-5-nitrobenzoic Acid (CAS 1975-52-6)
- 3-Methyl-2-nitrobenzoic Acid (CAS 5437-38-7)
- 3-Methyl-4-nitrobenzoic Acid (CAS 3113-71-1)
- 5-Methyl-2-nitrobenzoic Acid (CAS 3113-72-2)
- 4-Nitrobenzoic-d (CAS 171777-66-5)
- 2-Nitrobenzoic-d4 Acid (CAS 855997-63-6)
Recommended Standards
- 4-Methoxy-2-nitrobenzaldehyde (CAS 22996-21-0)
- 4-Methyl-3-nitropicolinamide (CAS 59290-37-8)
- 4-Hydroxy-3-nitrobenzimidamide (CAS 84436-55-5)
- 4-Methyl-5-nitropicolinamide (CAS 59290-38-9)
- 4-Chloroaniline-2,3,5,6-d4 (CAS 191656-33-4)
- 1,2-Bis(benzo[d][1,3,2]dioxaborol-2-yloxy)benzene (CAS 37737-62-5)
- N-((1-Benzoylpiperidin-4-yl)methyl)-4-fluorobenzamide (CAS 1956324-58-5)
- 1,1'-(2,6-Pyridinediyl)bis(3-methylimidazolium) dibromide (CAS 263874-05-1)
- Atrasentan Impurity 119 (CAS 209214-33-5)
- 4-Bromo-2-chloro-6-(difluoromethyl)-3-methoxypyridine (CAS 1803688-45-0)
- 1-((2-Aminothiazol-4-yl)methyl)azepan-4-one dihydrochloride (CAS 1426290-65-4)
- 1-(2,4-Dimethylphenyl)-5-methyl-1h-pyrazole-4-carboxylic acid (CAS 1154196-42-5)
- DL-3-(3,4-Dihydroxyphenyl)-2-methylalanine Ethyl Ester (CAS 14298-24-9)
- 3AEEA-Semaglutide(Endo-AEEA-Semaglutide) (CAS CATO-C4X-2226265)
Why CATO?
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