2-(5-Methoxy-2-methylphenyl)-2-methylpropanoic acid CAS 29206-05-1
| CAS No. | 29206-05-1 |
| Molecular Formula | C12H16O3 |
| Molecular Weight | 208.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(5-Methoxy-2-methylphenyl)-2-methylpropanoic acid (CAS 29206-05-1) is a high-purity analytical reference standard with the molecular formula C12H16O3 and a molecular weight of 208.25 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-(5-Methoxy-2-methylphenyl)-2-methylpropanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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-(5-Methoxy-2-methylphenyl)-2-methylpropanoic 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 | C12H16O3 |
| Molecular Weight | 208.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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 |
Related Methoxy Standards
- 3-Methoxy-2-(methoxymethyl)-1-phenyl-1-propanone (CAS 100257-34-9)
- 1-(4-Methoxy-3-propoxyphenyl)ethan-1-one (CAS 104226-65-5)
- Ethyl 4-methoxy-3,5-dimethylbenzoate (CAS 105401-94-3)
- 2-(2-Methoxy-5-methylphenyl)butanoic acid (CAS 1082453-44-8)
- Ethyl 4-methoxy-2,3-dimethylbenzoate (CAS 128209-84-7)
- Benzyl 2-Methoxy-2-methylpropionate (CAS 1363165-96-1)
- 4-Methoxy-3-methylphenethyl acetate (CAS 1443351-76-5)
- 2-(4-Methoxy-2-methylphenyl)butanoic acid (CAS 1497231-47-6)
Recommended Standards
- 2-(5-Isopropyl-2-methoxyphenyl)acetic acid (CAS 383135-03-3)
- 2-(Pentyloxy)benzoic acid (CAS 2200-82-0)
- 2-(4-Propylphenoxy)propanoic acid (CAS 25141-02-0)
- 2-(Sec-butoxy)-3-methoxybenzaldehyde (CAS 872183-67-0)
- N-(7-Chloro-4-methoxybenzo[d]thiazol-2-yl)-1-ethyl-1H-pyrazole-3-carboxamide (CAS 1171505-98-8)
- 2-(((1-Ethyl-1H-benzo[d]imidazol-2-yl)methyl)thio)benzo[d]thiazole (CAS 347341-76-8)
- 2-[5-(4-Fluorophenyl)-1,3-oxazol-2-yl]benzoic acid (CAS 950070-23-2)
- 2-Hydroxy-N-desmethyl Trimipramine (CAS 2064-14-4)
- (1S,2S)-N,N'-Dihydroxy-N,N'-bis(diphenylacetyl)cyclohexane-1,2-diamine (CAS 1217464-22-6)
- 2-(4-Fluorobenzylidene)-6-hydroxybenzofuran-3(2H)-one (CAS 61429-79-6)
- (+)-delta-Selinene (CAS 28624-28-4)
- N-[(2,4-Dichlorophenyl)methyl]-2-ethoxyethanamine (CAS 73728-64-0)
- 3-Iodopyrazine-2-carboxylic Acid (CAS 212471-40-4)
- Insulin Glargine Metabolite M2 (CAS CATO-CPTD788867)
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