Ethyl 4-ethoxy-2-hydroxybenzoate CAS 29264-30-0
| CAS No. | 29264-30-0 |
| Molecular Formula | C6H8N4O3 |
| Molecular Weight | 184.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 4-ethoxy-2-hydroxybenzoate (CAS 29264-30-0), molecular formula C6H8N4O3 and molecular weight 184.15 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl 4-ethoxy-2-hydroxybenzoate (C6H8N4O3) 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).
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 | C6H8N4O3 |
| Molecular Weight | 184.15 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, 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.) | 1965 |
| Nitrogen Atoms | 4 |
Related Ethyl Standards
- 3-Ethoxy-4-nitropyridine 1-oxide (CAS 19349-73-6)
- 3-Ethoxy-2-fluorobenzoic acid (CAS 1033201-71-6)
- 4-Ethoxy-2-fluorobenzoic acid (CAS 1206593-29-4)
- 2-Ethoxy-3-fluorobenzoic acid (CAS 1248787-46-3)
- 3-Ethoxy-5-fluorobenzoic acid (CAS 1350539-96-6)
- 5-Ethoxy-2-fluorobenzoic acid (CAS 1936598-64-9)
- 2-Ethoxy-5-fluorobenzoic acid (CAS 445-93-2)
- 2-Ethoxy-6-fluorobenzoic acid (CAS 902152-91-4)
Recommended Standards
- Dimethyl Pyrazole-3,5-dicarboxylate (CAS 4077-76-3)
- Ethyl 4-formyl-2-hydroxy-1H-imidazole-5-carboxylate (CAS 462095-37-0)
- Dimethyl furan-2,3-dicarboxylate (CAS 52900-79-5)
- ethyl 4-nitro-1H-pyrrole-2-carboxylate (CAS 5930-92-7)
- 2-(2-Methylpropyl)cyclopropane-1-carboxylic acid (CAS 1250198-67-4)
- Ethyl 2-(6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-ylidene)acetate (CAS 40129-54-2)
- (E)-3-(Quinolin-8-yl)acrylic acid (CAS 754190-58-4)
- Ethyl 4-(3-bromophenoxy)butanoate (CAS 157245-84-6)
- 2-((5-Chloro-2-methylphenyl)amino)-N-(1-methoxypropan-2-yl)acetamide (CAS 1208511-28-7)
- 1-(3-Chlorofuran-2-yl)ethanone (CAS 67171-00-0)
- 1-(6-Hydroxy-2-(trichloromethyl)tetrahydrofuro[2,3-d][1,3]dioxol-5-yl)ethane-1,2-diol (CAS 1190922-48-5)
- 4-(Difluoromethoxy)-2-methylpiperidine (CAS 2306261-80-1)
- 3-[2-(3,4-dimethoxyphenyl)ethyl]-2-sulfanyl-5-(thiophen-2-yl)-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 743452-31-5)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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