3,4-diethylbenzoic acid CAS 186253-12-3
| CAS No. | 186253-12-3 |
| Molecular Formula | C11H14O2 |
| Molecular Weight | 178.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-diethylbenzoic acid (CAS 186253-12-3), molecular formula C11H14O2 and molecular weight 178.23 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H14O2, 3,4-diethylbenzoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 178.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C11H14O2 |
| Molecular Weight | 178.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
Related diethylbenzoic Standards
Recommended Standards
- 1-(3,5-Dimethylphenoxy)propan-2-one (CAS 18621-26-6)
- 1-(1-Cyclopentyl-1H-pyrazol-3-yl)ethan-1-one (CAS 1864541-58-1)
- 4-(2-Methoxyphenyl)butanal (CAS 185760-59-2)
- (2R,4R)-2-Phenyltetrahydro-2H-pyran-4-ol (CAS 188053-98-7)
- 1,8-Dimethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 37041-23-9)
- 3-(Difluoromethyl)-5-(4-methoxyphenyl)-1H-pyrazole (CAS 1029636-42-7)
- 2-((4-Isobutyl-5-(3-(morpholinosulfonyl)phenyl)-4h-1,2,4-triazol-3-yl)thio)acetic acid (CAS 743457-07-0)
- 4,4,5,5-Tetramethyl-2-[3-(2-methylpropoxy)phenyl]-1,3,2-dioxaborolane (CAS 1338916-31-6)
- 2,2,2-Trifluoroethyl (1-ethyl-6-oxo-1,6-dihydropyridin-3-yl)carbamate (CAS 1311315-90-8)
- 3-Phenyl-N-(o-tolyl)acrylamide (CAS 78987-21-0)
- 1-(6-Bromo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazin-1-yl)-2,2-dimethylpropan-1-one (CAS 1228666-49-6)
- Ethyl (2-((2,6,8-trimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)acetyl)glycinate (CAS 852168-38-8)
- 5-(2,2,2-Trifluoroethyl)isoxazole-3-carboxylic acid (CAS 1936494-76-6)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
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