2-Isopropyl-5-methylbenzoic acid CAS 4424-25-3
| CAS No. | 4424-25-3 |
| Molecular Formula | C11H14O2 |
| Molecular Weight | 178.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Isopropyl-5-methylbenzoic acid (CAS 4424-25-3), molecular formula C11H14O2 and molecular weight 178.23 g/mol, is a CATO reference standard with documented purity and traceability.
2-Isopropyl-5-methylbenzoic acid (C11H14O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
As a certified reference material (CRM), 2-Isopropyl-5-methylbenzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 1958 |
Related Isopropyl Standards
- 6-Isopropyl-2-(methylamino)nicotinaldehyde (CAS 1289000-39-0)
- 5-Isopropyl-2-(methylamino)nicotinaldehyde (CAS 1289168-57-5)
- 1-Isopropyl-6,7-dihydro-1H-indazol-4(5H)-one (CAS 155997-51-6)
- 2-Isopropyl-4-methoxybenzaldehyde (CAS 181035-59-6)
- 2-Isopropyl-4-methylnicotinamide (CAS 2626938-14-3)
- 3-Isopropyl-4-methoxybenzaldehyde (CAS 31825-29-3)
- 5-Isopropyl-2,3-dihydrobenzo[b][1,4]dioxine (CAS 75459-40-4)
- 5-Isopropyl-2-methoxybenzaldehyde (CAS 85902-68-7)
Recommended Standards
- 2-Mesitylacetyl chloride (CAS 52629-46-6)
- 2-Isopropoxy-5-methylbenzaldehyde (CAS 610797-22-3)
- 2-Methoxy-2-phenyltetrahydrofuran (CAS 92594-09-7)
- 2-Isopropoxy-3-methylbenzaldehyde (CAS 532965-67-6)
- (R)-Azepane-4-sulfonamide (CAS 2165845-48-5)
- 3-Nitrophenylguanidine Nitrate (CAS 142992-99-2)
- 2,8-Diazaspiro[4.5]decan-2-yl(tetrahydrofuran-3-yl)methanone (CAS 867009-65-2)
- 1-Bromo-2,4-difluoro-5-ethoxybenzene (CAS 900175-11-3)
- 8-Methyl-2-(5-methylthiophen-2-yl)quinoline-4-carboxylic acid (CAS 667412-63-7)
- n-Methyl-4-{[5-(trifluoromethyl)pyridin-2-yl]oxy}aniline (CAS 1183362-22-2)
- Tert-butyl cyclopropyl(piperidin-2-ylmethyl)carbamate (CAS 1353957-18-2)
- 3-[2-isopropyl-6-oxo-4-(trifluoromethyl)-2,6-dihydro-7H-pyrazolo[3,4-b]pyridin-7-yl]propanoic acid (CAS 1018127-01-9)
- 4-(4-Chlorophenyl)-N,N-dimethylpiperazine-1-carboxamide (CAS 695174-29-9)
- Boc-Cholecystokinin Octapeptide (desulfated) (A-1295.0001) (CAS 25687-34-7)
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