1-Fluoro-4-(methylsulfinyl)benzene CAS 658-14-0
| CAS No. | 658-14-0 |
| Molecular Formula | C7H7FOS |
| Molecular Weight | 158.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Fluoro-4-(methylsulfinyl)benzene is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-Fluoro-4-(methylsulfinyl)benzene (CAS 658-14-0) is a high-purity analytical reference standard with the molecular formula C7H7FOS and a molecular weight of 158.19 g/mol.
Structurally, 1-Fluoro-4-(methylsulfinyl)benzene (C7H7FOS) contains sulfur-containing functionality, 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 158.19 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 1-Fluoro-4-(methylsulfinyl)benzene 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 | C7H7FOS |
| Molecular Weight | 158.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fluoro Standards
- 2-Fluoro-6-methoxybenzene-1-thiol (CAS 1208077-78-4)
- 2-Fluoro-3-(methylthio)phenol (CAS 1243283-09-1)
- 5-Fluoro-2-(methylthio)phenol (CAS 1243442-20-7)
- 3-Fluoro-5-(methylthio)phenol (CAS 1243456-31-6)
- 3-Fluoro-4-(methylthio)phenol (CAS 13333-79-4)
- 2-Fluoro-4-(methylthio)phenol (CAS 140220-05-9)
- 3-Fluoro-5-methoxybenzenethiol (CAS 1452479-81-0)
- 4-Fluoro-3-methoxybenzenethiol (CAS 1822665-11-1)
Recommended Standards
- 1-Fluoro-2-(methylsulfinyl)benzene (CAS 61122-88-1)
- 1-Hydroxy-4-methylcyclohexane-1-carboxylic acid (CAS 41248-15-1)
- 1-Ethoxyethyl methacrylate (CAS 51920-52-6)
- 1-Hydroxycycloheptane-1-carboxylic acid (CAS 20920-03-0)
- 2-Iodoisonicotinamide (CAS 29840-76-4)
- 5-(4-Aminophenyl)pyridin-2-amine (CAS 96721-87-8)
- Octahydro-4H-cyclopenta[b]pyridin-4-one hydrochloride (CAS 120641-01-2)
- 6-Chloro-7-hydroxychroman-4-one (CAS 74277-66-0)
- 3-(Difluoromethoxy)cyclohexan-1-amine (CAS 1603104-35-3)
- N,N,N',N'-Tetrakis(p-tolyl)benzidine (purified by sublimation) (CAS 76185-65-4)
- Ethyl L-lysinate hydrochloride (CAS 33171-14-1)
- 3-Bromo-5-methoxy-2-methylbenzoic acid (CAS 13979-61-8)
- 5-Bromo-6-nitro-1,3-benzodioxole (CAS 7748-58-5)
- Serpent Peptide (CAS 823202-99-9)
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