4-Amino-2,6-dimethylbenzoic acid CAS 16752-16-2
| CAS No. | 16752-16-2 |
| Molecular Formula | C9H11NO2 |
| Molecular Weight | 165.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 165.19 g/mol gives 4-Amino-2,6-dimethylbenzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Amino-2,6-dimethylbenzoic acid (CAS 16752-16-2) is a high-purity analytical reference standard with the molecular formula C9H11NO2 and a molecular weight of 165.19 g/mol.
4-Amino-2,6-dimethylbenzoic acid (C9H11NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 | C9H11NO2 |
| Molecular Weight | 165.19 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
Related Amino Standards
- (R)-3-Amino-2-phenyl-propionic acid (CAS 1008-63-5)
- 1-(3-Amino-4-hydroxyphenyl)propan-2-one (CAS 101488-87-3)
- 3-Amino-N-(pyridin-4(1h)-ylidene)propanamide (CAS 107551-92-8)
- (S)-3-Amino-2-phenylpropanoic acid (CAS 1076-51-3)
- 1-(2-Amino-4-hydroxy-3-methylphenyl)ethanone (CAS 1093741-78-6)
- 4-Amino-5,6,7,8-tetrahydroquinazolin-2(3H)-one (CAS 1127-87-3)
- 4-Amino-N-ethylpyridine-2-carboxamide (CAS 1153528-27-8)
- 4-Amino-n,n-dimethylpyridine-2-carboxamide (CAS 1155076-26-8)
Recommended Standards
- (S)-Phenyl 2-aminopropanoate (CAS 167088-01-9)
- 2-Methyl-3-(methylamino)benzoic acid (CAS 168899-43-2)
- 3-(3-Aminophenyl)propanoic Acid (CAS 1664-54-6)
- 2-Methyl-2-(3-pyridyl)propionic Acid (CAS 169253-35-4)
- sFRP-1 Inhibitor - CAS 915754-88-0 - Calbiochem (CAS 915754-88-0)
- N-(tert-Butyl)-3-chloro-5-(trifluoromethyl)-2-pyridinamine (CAS 1220037-10-4)
- 4-[2-(5-Ethyl-2-pyridinyl)ethoxy]benzenemethanol (CAS 144842-17-1)
- 1-Isocyano-4-methylbenzene (CAS 7175-47-5)
- 2-((4-(3,4-Dihydroxyphenyl)thiazol-2-yl)thio)-N-(3-ethoxypropyl)acetamide (CAS 940984-58-7)
- Imazaquin (CAS 81335-37-7)
- Methyl 5,6-dibromo-1H-indole-3-carboxylate (CAS 1309792-72-0)
- 2-(3-(2-Bromoethoxy)propyl)-6-methylpyridine (CAS 1221722-80-0)
- Methyl 2-amino-3-(aminooxy)propanoate dihydrochloride (CAS 27010-92-0)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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