1,3-Difluoro-5-(methylsulfonyl)benzene CAS 171421-55-9
| CAS No. | 171421-55-9 |
| Molecular Formula | C7H6F2O2S |
| Molecular Weight | 192.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H6F2O2S, 1,3-Difluoro-5-(methylsulfonyl)benzene contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 192.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
1,3-Difluoro-5-(methylsulfonyl)benzene (CAS 171421-55-9) is a high-purity analytical reference standard with the molecular formula C7H6F2O2S and a molecular weight of 192.18 g/mol.
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.
CATO manufactures 1,3-Difluoro-5-(methylsulfonyl)benzene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H6F2O2S |
| Molecular Weight | 192.18 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Difluoro Standards
- 2,2-Difluoro-2-(5-methylthiophen-3-yl)acetic acid (CAS 1462248-74-3)
- 2,2-Difluoro-2-(5-methylthiophen-2-yl)acetic acid (CAS 1481644-05-6)
- 1,2-Difluoro-4-(methylsulfonyl)benzene (CAS 424792-57-4)
- 1,4-Difluoro-2-(methylsulfonyl)benzene (CAS 236739-03-0)
- 2,4-Difluoro-1-(methylsulfonyl)benzene (CAS 236739-02-9)
- 7,7-Difluoro-6,7-dihydro-4H-pyrano[3,4-d]thiazol-2-amine (CAS 1391732-60-7)
- Methyl 4,4-difluoro-1-methylcyclohexanecarboxylate (CAS 1360568-90-6)
- methyl 2,2-difluoro-2-phenyl-acetate (CAS 56071-96-6)
Recommended Standards
- diethyl 2-fluoro-2-methyl-propanedioate (CAS 16519-02-1)
- (5-Amino-1-methyl-1H-pyrazol-3-yl)(1H-1,2,4-triazol-1-yl)methanone (CAS 1856095-36-7)
- 4-(Trifluoromethoxy)phenylacetylene (CAS 160542-02-9)
- (2-fluorophenyl)methanesulfonyl fluoride (CAS 1894823-73-4)
- 4-(3-(4-Methoxyphenyl)-1H-pyrazol-5-yl)butanoic acid (CAS 1239069-86-3)
- tert-Butyl (1-((trimethylsilyl)ethynyl)cyclopropyl)carbamate (CAS 1268810-08-7)
- 3-((3,4-Difluorobenzyl)oxy)benzaldehyde (CAS 1443345-50-3)
- Hexanoic acid, 6-[(4-iodobenzoyl)amino]- (CAS 247140-55-2)
- Ractopamine (CAS 97825-25-7)
- 2-(3-(Chloromethyl)piperidin-1-yl)acetic acid (CAS 1353978-33-2)
- 35205-79-9 4-nitrophenyl n-[(benzyloxy)carbonyl]alanylprolylglycinate AR-1G4076 (CAS 35205-79-9)
- 1-Cyclopropoxy-3-nitrobenzene (CAS 1243390-76-2)
- Tamsulosin Impurity 65 (CAS CATO-C4X-118765)
- Tirzepatide (CAS 2023788-19-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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