2-((4-Chlorobenzyl)sulfonyl)acetic acid CAS 118672-20-1
| CAS No. | 118672-20-1 |
| Molecular Formula | C9H9ClO4S |
| Molecular Weight | 248.68 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 2-((4-Chlorobenzyl)sulfonyl)acetic acid.
2-((4-Chlorobenzyl)sulfonyl)acetic acid (CAS 118672-20-1) is a high-purity analytical reference standard with the molecular formula C9H9ClO4S and a molecular weight of 248.68 g/mol.
Based on its molecular formula C9H9ClO4S, 2-((4-Chlorobenzyl)sulfonyl)acetic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.68 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.
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 | C9H9ClO4S |
| Molecular Weight | 248.68 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), 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; Hygroscopic; reseal immediately after opening; 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.) | 1990 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorobenzyl Standards
- (3-((2-Chlorobenzyl)oxy)phenyl)methanol (CAS 869951-12-2)
- (4-((2-Chlorobenzyl)oxy)phenyl)methanol (CAS 869951-11-1)
- 5-(((2-Chlorobenzyl)amino)methyl)pyrimidin-2-amine (CAS 1279206-15-3)
- 1-(2-Chlorobenzyl)-3,5-dimethyl-1H-pyrazole-4-carbaldehyde (CAS 882229-36-9)
- 3-((4-Chlorobenzyl)sulfinyl)propane-1,2-diol (CAS 956934-94-4)
- (3-((3-Chlorobenzyl)amino)phenyl)methanol (CAS 1152899-09-6)
- 1-(4-(2-Chlorobenzyl)-2-methyl-1H-pyrrol-3-yl)ethan-1-one (CAS 790719-57-2)
- N-(2-Chlorobenzyl)-4-methoxyaniline (CAS 61298-18-8)
Recommended Standards
- 2-(4-Chlorophenyl)-1-(3-fluorophenyl)ethanone (CAS 1183554-70-2)
- 4-Methyl-2-chlorosulfonyl-benzoic acid methyl ester, 97% (CAS 1188087-56-0)
- 2-(4-Chlorophenyl)-1-(2-fluorophenyl)ethan-1-one (CAS 1183199-32-7)
- Methyl 2-(chlorosulfonyl)-3-methylbenzoate (CAS 126535-26-0)
- Cyclobutyl(3-(hydroxymethyl)pyrrolidin-1-yl)methanone (CAS 1250500-18-5)
- 2-(2-Cyanobenzenesulfinyl)-N-(prop-2-en-1-yl)benzamide (CAS 477710-72-8)
- 4-(4-Isocyanatopyridin-2-yl)morpholine (CAS 876316-43-7)
- 4-Chloro-N-(2-(pyridin-3-yl)pyrimidin-4-yl)benzenesulfonamide (CAS 439108-36-8)
- 2-((3-Chlorobenzyl)amino)-1-(4-chlorophenyl)-1-phenylethan-1-ol hydrochloride (CAS 1030603-73-6)
- [2-(2-methoxyethoxy)phenyl]methanol (CAS 1020929-44-5)
- 4-((1,3,4-Thiadiazol-2-yl)amino)-4-oxobutanoic acid (CAS 26861-97-2)
- N-(2,5-dimethylphenyl)-4-hydroxybenzamide (CAS 692745-50-9)
- 2-(3-(2-Chloroethoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1256359-00-8)
- Tau Peptide (301-315) trifluoroacetate salt (CAS 330456-48-9)
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