4-[(4-Chlorophenyl)thio]butanoic acid CAS 29193-63-3
| CAS No. | 29193-63-3 |
| Molecular Formula | C10H11ClO2S |
| Molecular Weight | 230.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-[(4-Chlorophenyl)thio]butanoic acid (CAS 29193-63-3), a certified reference material (molecular formula C10H11ClO2S, MW 230.71 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 4-[(4-Chlorophenyl)thio]butanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 230.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C10H11ClO2S |
| Molecular Weight | 230.71 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 | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 2-((4-Chlorophenyl)thio)propanehydrazide (CAS 1024477-91-5)
- 1-(4-Chlorophenyl)-2-((2-hydroxyethyl)thio)ethan-1-one (CAS 1157217-46-3)
- Ethyl 2-((2-chlorophenyl)thio)acetate (CAS 137583-58-5)
- Ethyl 2-((3-chlorophenyl)thio)acetate (CAS 141819-39-8)
- 1-((2-Chlorophenyl)thio)-3-methoxypropan-2-one (CAS 1515012-94-8)
- 1-((3-Chlorophenyl)thio)-3-methoxypropan-2-one (CAS 1537391-78-8)
- 3-((4-Chlorophenyl)thio)butanoic acid (CAS 90919-34-9)
- Ethyl 2-((4-chlorophenyl)thio)acetate (CAS 52377-68-1)
Recommended Standards
- 5,6,7,8-tetrahydronaphthalene-1-sulfonyl chloride (CAS 62686-69-5)
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- 5,6,7,8-Tetrahydro-naphthalene-2-sulfonyl chloride (CAS 61551-49-3)
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- (R)-3-Aminobutyricacidethylester (CAS 115880-49-4)
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- 5-formylthiophene-2-sulfonamide (CAS 933730-46-2)
- 1-Benzyl-2-methylpiperidin-3-one (CAS 74798-56-4)
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- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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