4-Amino-3,5-dichlorobenzene-1-sulfonyl chloride CAS 98141-54-9
| CAS No. | 98141-54-9 |
| Molecular Formula | C6H4Cl3NO2S |
| Molecular Weight | 260.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 260.53 g/mol gives 4-Amino-3,5-dichlorobenzene-1-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Amino-3,5-dichlorobenzene-1-sulfonyl chloride (CAS 98141-54-9), a certified reference material (molecular formula C6H4Cl3NO2S, MW 260.53 g/mol) for analytical method development and quality control.
Structurally, 4-Amino-3,5-dichlorobenzene-1-sulfonyl chloride (C6H4Cl3NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine 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 260.53 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 | C6H4Cl3NO2S |
| Molecular Weight | 260.53 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 4-Amino-2,5-dichlorobenzene-1-sulfonyl chloride (CAS 4857-94-7)
- 2-Amino-5-chloro-3-iodopyridine 211308-81-5 MFCD07644578 SY041328 (CAS 211308-81-5)
- 2-Amino-3-iodo-4-chloropyridine ; 4-chloro-3-iodopyridin-2-amine 2-Amino-4-chloro-3-iodopyridine 417721-69-8 (CAS 417721-69-8)
- 4-Amino-5-(difluoromethyl)-2-fluoropyridine-3-sulfonyl chloride (CAS 1803697-26-8)
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- Closantel Sodium (CAS 61438-64-0)
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