2-(4-Chloro-3,5-dimethylphenoxy)butanoic acid CAS 70921-52-7
| CAS No. | 70921-52-7 |
| Molecular Formula | C12H15ClO3 |
| Molecular Weight | 242.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 242.70 g/mol gives 2-(4-Chloro-3,5-dimethylphenoxy)butanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(4-Chloro-3,5-dimethylphenoxy)butanoic acid (CAS 70921-52-7), molecular formula C12H15ClO3 and molecular weight 242.70 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(4-Chloro-3,5-dimethylphenoxy)butanoic acid (C12H15ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 242.70 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 2-(4-Chloro-3,5-dimethylphenoxy)butanoic 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 | C12H15ClO3 |
| Molecular Weight | 242.70 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 2-(4-Chloro-3,5-dimethylphenoxy)-2-methylpropanoic acid (CAS 667436-01-3)
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- 2-(4-Chlorobenzyl)benzofuran (CAS 55877-45-7)
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- 6-Chloro-5-iodo-3,3'-bipyridine (CAS 1214343-67-5)
- Ethyl 4-((6-(benzo[d][1,3]dioxol-5-yl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl)thio)butanoate (CAS 625376-95-6)
- 2-(4-Chloro-3-fluorophenyl)cyclopropanecarbaldehyde (CAS 1708179-04-7)
- 2-[2-(2-Chloro-7-methyl-3-quinolinyl)ethyl]-1h-isoindole-1,3(2H)-dione (CAS 1105193-61-0)
- 2-[2-(4-Chloro-3,5-dimethylphenoxy)ethyl]-piperidine hydrochloride (CAS 1219961-09-7)
- 9-[2-[Bis(1-methylethyl)phosphino]phenyl]-9H-carbazole (CAS 1308652-65-4)
- 4-(Isopentyloxy)-2,6-dimethylbenzenethiol (CAS 1443305-00-7)
- 2-Cyano-3-(M-Fluorophenyl)Acrylamide (CAS 100908-62-1)
- Liraglutide (13-21) TFA Salt (CAS CATO-C4X-19928)
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