4-Butoxy-2-chloro-1-fluorobenzene CAS 1881331-19-6
| CAS No. | 1881331-19-6 |
| Molecular Formula | C10H12ClFO |
| Molecular Weight | 202.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Butoxy-2-chloro-1-fluorobenzene (CAS 1881331-19-6), molecular formula C10H12ClFO and molecular weight 202.65 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, 4-Butoxy-2-chloro-1-fluorobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 202.65 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H12ClFO |
| Molecular Weight | 202.65 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
Related Butoxy Standards
- 1-Butoxy-3-chloro-2-fluorobenzene (CAS 1865116-30-8)
- 5-(sec-Butoxy)-4-chloropyridazin-3(2H)-one (CAS 1346697-47-9)
- 5-(tert-Butoxy)-4-chloropyridazin-3(2H)-one (CAS 1346697-48-0)
- 5-Butoxy-4-chloropyridazin-3(2H)-one (CAS 38717-15-6)
- 2-[(tert-butoxy)carbonyl]-3-methylbutanoic acid (CAS 1824108-90-8)
- 4-(tert-Butoxy)-3,3-dimethyl-4-oxobutanoic Acid (CAS 660423-00-7)
- 6-(tert-Butoxy)-6-oxohexanoic acid (CAS 52221-07-5)
- 4-Butoxy-2,3-difluorophenol (CAS 136239-68-4)
Recommended Standards
- 1-Chloro-3-fluoro-5-(2-methylpropoxy)benzene (CAS 1881295-09-5)
- 1-(2-Chloro-4-fluorophenyl)-2-methylpropan-2-ol (CAS 868049-98-3)
- 1-Chloro-4-fluoro-5-methyl-2-propoxybenzene (CAS 1872806-94-4)
- Lumateperone Impurity 34 (CAS 51787-87-2)
- Ethyl 5-butoxy-1H-pyrazole-3-carboxylate (CAS 1344687-98-4)
- N-(4H-1,2,4-triazol-3-yl)pyridin-3-amine (CAS 1803588-42-2)
- N-(furan-2-ylmethyl)cyclobutanecarboxamide (CAS 33582-92-2)
- 2-{4-[4-(aminomethyl)phenyl]phenoxy}acetamide (CAS 1099675-86-1)
- 2-chloro-N-(2-chloro-4-methylthiophen-3-yl)acetamide (CAS 2031260-38-3)
- 6-chloro-3-iodopyridin-2-amine (CAS 800402-06-6)
- 2-Methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 2095797-27-4)
- 5-(Aminomethyl)-5-(4-fluorophenyl)imidazolidine-2,4-dione hydrochloride (CAS 1224885-25-9)
- (S)-6-acetamido-3-aminohexanoic acid (CAS 40139-10-4)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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