3-(2-Fluoro-phenyl)-thiophene CAS 193958-89-3
| CAS No. | 193958-89-3 |
| Molecular Formula | C10H7FS |
| Molecular Weight | 178.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H7FS, 3-(2-Fluoro-phenyl)-thiophene contains sulfur-containing functionality, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 178.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3-(2-Fluoro-phenyl)-thiophene (CAS 193958-89-3), molecular formula C10H7FS and molecular weight 178.23 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 | C10H7FS |
| Molecular Weight | 178.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2012 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fluoro Standards
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- 5-Fluoro-2-mercaptobenzoic acid (CAS 120121-07-5)
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- 2-Fluoro-6-(isopropylamino)benzonitrile (CAS 1154686-14-2)
- 2-Fluoro-5-(isopropylamino)benzonitrile (CAS 1248619-87-5)
- 5-Fluoro-2-(propylamino)benzonitrile (CAS 1343796-44-0)
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- 5-Fluoro-2-(isopropylamino)benzonitrile (CAS 1343996-60-0)
Recommended Standards
- 1-((3-Methylcyclobutyl)methyl)-1H-pyrazole-3-carbaldehyde (CAS 1935565-28-8)
- 2-(2-Isopropylphenyl)acetic acid (CAS 19418-96-3)
- β,3-Dimethylbenzenepropanoic acid (CAS 19355-29-4)
- 2-Methyl-4-phenylbutanoic acid (CAS 1949-41-3)
- 2-Amino-5-ethynylbenzonitrile (CAS 1233521-01-1)
- PLX 647 dihydrochloride (CAS 1779796-38-1)
- 2-((5-(4-Chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)-N-(2,4-dimethylphenyl)acetamide (CAS 332947-78-1)
- 3-cyanoindole-5-carboxylic acid (CAS 889942-87-4)
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(2-((trimethylsilyl)oxy)propan-2-yl)pyridine (CAS 1228014-10-5)
- 1-N-Boc-3-(4-Bromophenoxy)pyrrolidine (CAS 1159825-42-9)
- (R)-1-(3-chloro-4-methoxyphenyl)but-3-en-1-amine (CAS 1270092-99-3)
- N-(4,6-Diphenylpyrimidin-2-yl)butyramide (CAS 820961-65-7)
- 1-Benzyl-5,6-dihydropyridin-2(1H)-one (CAS 128773-72-8)
- Tirzepatide Impurity 47 (CAS CATO-C4X-324047)
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