2-(Pyridin-4-yl)ethane-1-sulfonyl chloride hydrochloride CAS 81705-92-2
| CAS No. | 81705-92-2 |
| Molecular Formula | C7H8ClNO2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-(Pyridin-4-yl)ethane-1-sulfonyl chloride hydrochloride (C7H8ClNO2SHCl) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 242.11 g/mol, it falls into the medium-molecular-weight range. 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).
2-(Pyridin-4-yl)ethane-1-sulfonyl chloride hydrochloride (CAS 81705-92-2) is a high-purity analytical reference standard with the molecular formula C7H8ClNO2SHCl and a molecular weight of 242.11 g/mol.
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 | C7H8ClNO2S HCl |
| Molecular Weight | 242.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Pyridin Standards
- 3-[(E)-2-(Pyridin-3-yl)ethenyl]-1,2-dihydroquinoxalin-2-one (CAS 1000169-10-7)
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Recommended Standards
- 334973-64-7 NSC 26256-9,10-13C2 Phenanthrene-9,10-13C2 Ravatite-9,10-13C2 [3]Helicene-9,10-13C2 (CAS 334973-64-7)
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- N-[4-(2-Cyclohexylethoxy)phenyl]-N-(3-propoxybenzyl)amine (CAS 1040693-67-1)
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- (3S,4R)-1-azabicyclo[2.2.1]Heptan-3-amine (CAS 508209-67-4)
- Methyl 6-amino-4-methoxynicotinate (CAS 397309-41-0)
- 3-{[(5-bromofuran-2-yl)methyl]amino}-4-methylbenzoic acid (CAS 1157945-03-3)
- Polyphemusin II-Derived Peptide (CAS 229030-20-0)
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