S-(4-Chloro-3-fluorophenyl) ethanethioate CAS 1379331-12-0
| CAS No. | 1379331-12-0 |
| Molecular Formula | C8H6ClFOS |
| Molecular Weight | 204.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies S-(4-Chloro-3-fluorophenyl) ethanethioate (CAS 1379331-12-0), a certified reference material (molecular formula C8H6ClFOS, MW 204.65 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, S-(4-Chloro-3-fluorophenyl) ethanethioate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 204.65 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C8H6ClFOS |
| Molecular Weight | 204.65 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-chlorobenzofuran-2-carboxylic acid (CAS 1378703-27-5)
- S-(3-chloro-4-fluorophenyl) ethanethioate (CAS 1379345-37-5)
- (S)-N-(1-(2-Chloroacetyl)pyrrolidin-3-yl)acetamide (CAS 1354010-52-8)
- S-(3-chloro-5-fluorophenyl) ethanethioate (CAS 1379364-34-7)
- 2-(Benzo[b]thiophen-3-yl)-N-methylethan-1-amine (CAS 52994-61-3)
- 5-(2,5-Dimethoxyphenyl)-4-methyl-1h-pyrazole-3-carboxylic acid (CAS 890626-00-3)
- 4-Ethyl-5-(phenoxymethyl)-4H-1,2,4-triazole-3-thiol (CAS 305337-09-1)
- tert-Butyl (6-aminoisoquinolin-1-yl)carbamate (CAS 431053-36-0)
- Cis-4-Fluoropyrrolidin-3-ol (CAS 1434248-02-8)
- Ethyl 3-hydroxy-7-iodobenzo[b]thiophene-2-carboxylate (CAS 2168378-32-1)
- 2-Ethyl-6-(propan-2-yl)pyridine-3-carboxylic acid (CAS 1379202-68-2)
- Methyl 5-(3-chlorophenyl)furan-2-carboxylate (CAS 41019-39-0)
- H-Glu-Val-OH (G-2010.0001) (CAS 5879-06-1)
- Acetyl-(Leu28·31)-Neuropeptide Y (24-36) (CAS 155709-24-3)
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