2-(2-Isopropyl-5-methylphenoxy)acetic Acid CAS 5333-40-4
| CAS No. | 5333-40-4 |
| Molecular Formula | C12H16O3 |
| Molecular Weight | 208.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-(2-Isopropyl-5-methylphenoxy)acetic Acid (C12H16O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies 2-(2-Isopropyl-5-methylphenoxy)acetic Acid (CAS 5333-40-4), a certified reference material (molecular formula C12H16O3, MW 208.25 g/mol) for analytical method development and quality control.
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 | 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.) | 1958 |
Related Isopropyl Standards
- (4-Isopropyl-3-methyl-phenoxy)-acetic acid (CAS 105401-43-2)
- (2-Isopropyl-4-methylphenoxy)acetic acid (CAS 105401-90-9)
- 3-Isopropyl-4-methoxy-benzoic acid methyl ester (CAS 105401-95-4)
- 5-Isopropyl-2,4-dimethoxybenzaldehyde (CAS 1071151-44-4)
- 2-(5-Isopropyl-2-methoxyphenyl)acetic acid (CAS 383135-03-3)
- 2-Isopropyl-3,4-dimethoxybenzaldehyde (CAS 77256-02-1)
- 4-Isopropyl-2,5-dimethoxybenzaldehyde (CAS 53581-82-1)
- 4-Isopropyl-3,5-dimethoxybenzaldehyde (CAS 344396-19-6)
Recommended Standards
- 2-(2-Ethoxybenzyl)-1,3-dioxolane (CAS 898759-45-0)
- 2-(2-Methoxy-5-methylphenyl)-2-methylpropanoic acid (CAS 858785-33-8)
- 2-(2,3-Dimethyl-phenoxy)-butyric acid (CAS 3347-50-0)
- 2-(2-Phenyl-1,3-dioxan-5-yl)ethanol (CAS 227778-80-5)
- 3-Amino-3-(benzo[b]thiophen-3-yl)propan-1-ol (CAS 683220-84-0)
- 6-(Hydroxymethyl)benzo[c][1,2]oxaborol-1(3H)-ol (CAS 947162-87-0)
- [(2,5-Dimethoxyphenyl)methyl](prop-2-en-1-yl)amine hydrochloride (CAS 1240581-93-4)
- 7-Chloro-4-{[3-(trifluoromethyl)phenyl]methyl}-2,3,4,5-tetrahydro-1,4-benzoxazepin-3-one (CAS 1326826-28-1)
- SPhos Pd G3 (CAS 1445085-82-4)
- (S)-5-(((tert-butyldiphenylsilyl)oxy)methyl)pyrrolidin-2-one (CAS 132974-83-5)
- 1-(Methyl(pyridin-4-yl)amino)-1H-pyrrole-2-carbonitrile (CAS 111225-36-6)
- 2-(2-Hydroxyphenoxy)-acetic Acid Methyl Ester (CAS 165380-12-1)
- N-(5-(Isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)benzo[d]thiazole-2-carboxamide (CAS 946362-33-0)
- Tau Peptide (301-315) trifluoroacetate salt (CAS 330456-48-9)
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