4-Fluoro-3-methylsulfanylphenol CAS 836678-97-8
| CAS No. | 836678-97-8 |
| Molecular Formula | C7H7FOS |
| Molecular Weight | 158.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Fluoro-3-methylsulfanylphenol 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.
4-Fluoro-3-methylsulfanylphenol (CAS 836678-97-8), molecular formula C7H7FOS and molecular weight 158.19 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Fluoro-3-methylsulfanylphenol (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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | 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.) | 1986 |
| 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
- 4-Fluoro-2-methoxybenzenethiol (CAS 398456-80-9)
- 4-Formyl-hexanoic acid methyl ester (CAS 66757-48-0)
- 4-Fluoro-2-(methylthio)phenol (CAS 90033-52-6)
- 4-Hydroxy-4-methylcyclohexane-1-carboxylic acid (CAS 90113-41-0)
- 5-Ethyl-4-(heptan-4-yl)-1H-pyrazol-3-amine (CAS 647854-07-7)
- 7-Amino-4-methyl-2H-1,4-benzoxazin-3(4H)-one (CAS 141068-81-7)
- 2-(2,4-Dichlorophenyl)indoline Hydrochloride (CAS 1177333-27-5)
- Methyl 5-((3-chloro-4-methylphenyl)carbamoyl)-2-(4-chlorobenzamido)-4-methylthiophene-3-carboxylate (CAS 332928-33-3)
- N-(2,4-difluorophenyl)-2H-chromene-3-carboxamide (CAS 338420-03-4)
- 3-((4-Chlorophenyl)thio)butan-2-one (CAS 14207-10-4)
- 6-Chloro-2-(phenylthio)pyrimidin-4(1H)-one (CAS 284682-01-5)
- 1-[4-(Trifluoromethoxy)phenyl]cyclopropanemethanamine (CAS 1209782-81-9)
- 1-(chloromethyl)-4-cyclobutylbenzene (CAS 1379078-16-6)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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