3-Butoxy-2-fluoro-4-methoxyphenol CAS 1881328-22-8
| CAS No. | 1881328-22-8 |
| Molecular Formula | C11H15FO3 |
| Molecular Weight | 214.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Butoxy-2-fluoro-4-methoxyphenol (C11H15FO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 214.23 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
3-Butoxy-2-fluoro-4-methoxyphenol (CAS 1881328-22-8), molecular formula C11H15FO3 and molecular weight 214.23 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C11H15FO3 |
| Molecular Weight | 214.23 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 methanol, ethanol, 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F-containing |
Related Butoxy Standards
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- 4-Butoxy-3,5-difluorobenzaldehyde (CAS 1443344-17-9)
- 2-Butoxy-3,5-difluorobenzaldehyde (CAS 1443348-98-8)
- 3-Butoxy-4,5-difluorobenzaldehyde (CAS 1443349-28-7)
- 3-Butoxy-2,6-difluorobenzaldehyde (CAS 1706461-13-3)
- 4-Butoxy-2,5-difluorobenzaldehyde (CAS 2586127-44-6)
- 3-[2-(tert-Butoxy)-2-oxoethyl]cyclobutane-1-carboxylic acid (CAS 1506431-11-3)
- 1-[2-(tert-butoxy)-2-oxoethyl]cyclobutane-1-carboxylic acid (CAS 1894131-33-9)
Recommended Standards
- 2-Fluoro-4-methoxy-3-(2-methylpropoxy)phenol (CAS 1881288-39-6)
- (3,5-Diethoxy-4-fluorophenyl)methanol (CAS 909854-05-3)
- (2,2-difluorocyclopentyl)methyl methanesulfonate (CAS 1820706-46-4)
- (3-fluorophenyl)(3-methylphenyl)methanone (CAS 864087-22-9)
- 4-((5-Methyl-5H-pyrrolo[3,2-d]pyrimidin-4-yl)oxy)-N-phenylbenzamide (CAS 919280-39-0)
- N-((1,4-Dimethyl-1H-pyrazol-5-yl)methyl)ethanamine hydrochloride (CAS 1856044-99-9)
- 5-Methyl-2-phenyl-3-(pyrimidin-2-yl)thiazolidin-4-one (CAS 821782-84-7)
- (Cyclopropylmethyl)hydrazine hemioxalate (CAS 2173992-09-9)
- 4,6-Dibromo-2-chloro-3-fluorophenol (CAS 2432848-51-4)
- Methyl 2-(6-fluoro-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate (CAS 476619-16-6)
- N-(Benzo[d]thiazol-2-yl)-2-((7-(4-fluorophenyl)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazol-3-yl)thio)acetamide (CAS 921788-94-5)
- 6-((7-Chloroquinazolin-4-yl)amino)hexan-1-ol (CAS 5427-36-1)
- 4-((1H-Pyrazol-1-yl)methyl)phenol (CAS 80200-09-5)
- Semaglutide impurity 69 (CAS CATO-C4X-222669)
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