Biphenyl-4-sulfonyl chloride CAS 1623-93-4
| CAS No. | 1623-93-4 |
| Molecular Formula | C12H21ClO2S |
| Molecular Weight | 264.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Biphenyl-4-sulfonyl chloride (CAS 1623-93-4), molecular formula C12H21ClO2S and molecular weight 264.81 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H21ClO2S, Biphenyl-4-sulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 264.81 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.
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 | C12H21ClO2S |
| Molecular Weight | 264.81 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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- 1-([1,1'-Biphenyl]-4-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1416342-12-5)
- [1,1'-Biphenyl]-4-yl(5-amino-1,2,4-oxadiazol-3-yl)methanone (CAS 51807-76-2)
- 5-(4'-methyl-[1,1'-biphenyl]-2-yl)-2-nitroso-2H-tetrazole (CAS CATO-C3D-26202)
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Recommended Standards
- 4-phenylcyclohexane-1-sulfonyl chloride (CAS 1250661-03-0)
- 5-Bromo-2,3-difluoro-4-formylphenylboronic acid (CAS 2377610-13-2)
- [1,1'-bi(cyclohexane)]-2-sulfonyl chloride (CAS 1249335-38-3)
- 6-Bromo-2,4-fifluoro-3-formylphenylboronic acid (CAS 2121513-39-9)
- MS37452 (CAS 423748-02-1)
- TBCPF (CAS 954497-15-5)
- 5-[3-Bromo-5-(trifluoromethyl)phenyl]-oxazole (CAS 1630747-25-9)
- 1-Methyl-2-nitro-4-(perfluoroethyl)benzene (CAS 134302-31-1)
- 7-Bromo-2,3-dihydro-1,4-benzodioxine-6-carbonitrile (CAS 1156467-95-6)
- Tert-butyl (4-oxo-4-(piperazin-1-yl)butyl)carbamate (CAS 1308650-47-6)
- 7,4’-Dihydroxy-3’-prenylflavan (CAS 376361-96-5)
- 4-(2-(4-Chlorophenyl)acetyl)-1H-pyrrole-2-carbonitrile (CAS 338406-60-3)
- N-methyl-N-(4-methylbenzoyl)glycine (CAS 133604-64-5)
- Heptapeptide-6 (CAS CATO-CPTD788823)
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