2-(3-Methoxy-2-methylphenyl)acetic acid CAS 33797-36-3
| CAS No. | 33797-36-3 |
| Molecular Formula | C10H12O3 |
| Molecular Weight | 180.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 180.20 g/mol gives 2-(3-Methoxy-2-methylphenyl)acetic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(3-Methoxy-2-methylphenyl)acetic acid (CAS 33797-36-3), molecular formula C10H12O3 and molecular weight 180.20 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-(3-Methoxy-2-methylphenyl)acetic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 180.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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-(3-Methoxy-2-methylphenyl)acetic 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 | C10H12O3 |
| Molecular Weight | 180.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, 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.) | 1966 |
Related Methoxy Standards
- 2-(3-Methoxy-4-methylphenyl)acetic acid (CAS 100861-38-9)
- 5-Methoxy-2,2-dimethylbenzo[d][1,3]dioxole (CAS 101911-24-4)
- 2-Methoxy-4-methylbenzohydrazide (CAS 103956-11-2)
- N-Methoxy-N,5-dimethylpicolinamide (CAS 1065008-22-1)
- Methyl 3-methoxy-5-methylbenzoate (CAS 108593-44-8)
- N-Methoxy-N-methyl-2-(pyridin-4-yl)acetamide (CAS 1202801-25-9)
- N-Methoxy-N,2-dimethylisonicotinamide (CAS 1211580-90-3)
- 2-Methoxy-3,4-dimethylbenzoic acid (CAS 1245533-07-6)
Recommended Standards
- 2-(3-hydroxyphenyl)-2-methylpropanoic acid (CAS 264879-13-2)
- 2-(3-Methoxyphenyl)ethanohydrazide (CAS 34624-38-9)
- 2-(3-Ethoxyphenyl)acetic acid (CAS 72775-83-8)
- 2-(3-Methoxyphenyl)propanoic acid (CAS 3146-60-9)
- 2-(3,4,5-Trimethoxy-phenyl)thiazolidinehydrochloride (CAS 1185296-81-4)
- 4-Aminopyrimidine-5-carbohydrazide (CAS 89180-15-4)
- 1-Ethyl-3,5-dimethyl-1H-pyrazolo[4,3-d]pyrimidin-7(4H)-one (CAS 89239-59-8)
- 6-Chloro-4-methyl-1,2,3,4-tetrahydroisoquinoline (CAS 73037-81-7)
- 5-amino-1-ethyl-2,3-dihydro-1H-indol-2-one hydrochloride (CAS 1305712-42-8)
- N-(1-aminopropan-2-yl)isobutyramide (CAS 145788-68-7)
- (Z)-2-(2,4-dichlorobenzenesulfonyl)-N'-hydroxyethanimidamide 1798403-96-9 MS-9669 (CAS 1798403-96-9)
- 4-(But-2-yn-1-yloxy)aniline (CAS 947681-14-3)
- 4-Bromo-7-fluorobenzofuran (CAS 1194376-46-9)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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