4-Chlorophenyl thiophene-2-sulfonate CAS 88022-34-8
| CAS No. | 88022-34-8 |
| Molecular Formula | C10H7ClO3S2 |
| Molecular Weight | 274.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Chlorophenyl thiophene-2-sulfonate.
CATO supplies 4-Chlorophenyl thiophene-2-sulfonate (CAS 88022-34-8), a certified reference material (molecular formula C10H7ClO3S2, MW 274.74 g/mol) for analytical method development and quality control.
Structurally, 4-Chlorophenyl thiophene-2-sulfonate (C10H7ClO3S2) contains 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 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 274.74 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C10H7ClO3S2 |
| Molecular Weight | 274.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Chlorophenyl Standards
- 2-(3-Chlorophenyl)-2-methyl-3-phenylpropanoic acid (CAS 1017479-15-0)
- 4-[(2-chlorophenyl)methoxy]-3,5-dimethylbenzaldehyde (CAS 1039819-35-6)
- 3-(4-Chlorophenyl)-1-(4-methoxyphenyl)propan-1-one (CAS 111302-55-7)
- (2-Chlorophenyl)(4-methoxy-3,5-dimethylphenyl)methanone (CAS 951884-41-6)
- (3-Chlorophenyl)(4-methoxy-3,5-dimethylphenyl)methanone (CAS 61259-85-6)
- (4-Chlorophenyl)(4-methoxy-3,5-dimethylphenyl)methanone (CAS 61259-84-5)
- 1-(2-Chlorophenyl)-3-(4-methoxyphenyl)propan-1-one (CAS 898775-98-9)
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Recommended Standards
- 4-Chloro-3-(3-methoxyphenyl)propiophenone (CAS 898774-70-4)
- Ethyl 2-(2-chloro-[1,1'-biphenyl]-4-yl)acetate (CAS 5001-93-4)
- 3-Chloro-3-(3-methoxyphenyl)propiophenone (CAS 898774-68-0)
- ethyl 6-chloro-7-methyl-4-oxo-chromene-2-carboxylate (CAS 2530127-57-0)
- (3R,4S)-4-(Ethylamino)tetrahydrofuran-3-ol (CAS 1212163-30-8)
- Tert-butyl (r)-(1-isobutyrylpyrrolidin-3-yl)carbamate (CAS 1286208-21-6)
- N-(4-Methylbenzylidene)-4-nitroaniline (CAS 20192-50-1)
- Empagliflozin impurity 183 (CAS 32746-79-5)
- (3-Methoxyphenyl)(5-(2-methylfuran-3-yl)-1H-1,2,4-triazol-3-yl)methanamine (CAS 1707735-82-7)
- 2-(1h-1,2,4-Triazol-1-yl)acetohydrazide (CAS 56563-02-1)
- 2-Cyano-2-methylpropanoic Acid (CAS 22426-30-8)
- 9-(2,5-Dimethyl-1H-pyrrol-1-yl)-6-(methylthio)-9H-purine (CAS 37154-81-7)
- 4,4′-Difluorobiphenyl (CAS 398-23-2)
- Semaglutide Impurity 15 (CAS CATO-C4X-222615)
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