2-(4-chlorobenzenesulfinyl)acetic acid CAS 3996-47-2
| CAS No. | 3996-47-2 |
| Molecular Formula | C8H7ClO3S |
| Molecular Weight | 218.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-chlorobenzenesulfinyl)acetic acid (C8H7ClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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-(4-chlorobenzenesulfinyl)acetic acid (CAS 3996-47-2), molecular formula C8H7ClO3S and molecular weight 218.66 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(4-chlorobenzenesulfinyl)acetic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H7ClO3S |
| Molecular Weight | 218.66 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.) | 1958 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related chlorobenzenesulfinyl Standards
- 5-(2-Chlorobenzenesulfinyl)-4-methyl-1,2,3-thiadiazole (CAS 339008-92-3)
- 4-(4-Chlorobenzenesulfinyl)-6-(methoxymethyl)-2-methylpyrimidine (CAS 338747-92-5)
- 5-(4-Chlorobenzenesulfinyl)-N,N-dimethyl-1,2,3-thiadiazole-4-carboxamide (CAS 306977-00-4)
- 2-(2-Chlorobenzenesulfinyl)-N-(4-methoxyphenyl)acetamide (CAS 339097-36-8)
- N-[2-(4-Chlorobenzenesulfinyl)ethyl]-2-(4-methylphenyl)acetamide (CAS 477710-08-0)
- (E)-[2-(4-Chlorobenzenesulfinyl)-1-(4-chlorophenyl)ethylidene](methoxy)amine (CAS 320422-53-5)
- 4-{6-[(4-chlorobenzenesulfinyl)methyl]-2-methylpyrimidin-4-yl}morpholine (CAS 339278-88-5)
- 1-[5-(4-Chlorobenzenesulfinyl)-1,2,3-thiadiazole-4-carbonyl]piperidine (CAS 306976-94-3)
Recommended Standards
- (Z)-n'-(2-chloroacetoxy)thiophene-2-carboximidamide (CAS 63417-80-1)
- 2-(Methylsulfonyl)benzoyl chloride (CAS 49639-13-6)
- 2-(4-Chloro-2-(methylthio)pyrimidin-5-yl)acetic acid (CAS 1781663-97-5)
- 2,3-dihydro-1-benzofuran-6-sulfonyl chloride (CAS 724446-31-5)
- 1-[(4-Fluorophenyl)methyl]-4-methyl-piperazine (CAS 144734-44-1)
- tert-butyl N-[(1R,2S)-2-hydroxycyclohexyl]carbamate (CAS 291533-28-3)
- 2-(Methylamino)-1,3-thiazole-5-carboxylic acid (CAS 1393525-02-4)
- 2-Isopropyl-3,4-dimethyl-2H-pyrazolo[3,4-b]pyridin-6(7H)-one (CAS 1018163-44-4)
- Methyl 5-cyclohexyloxazole-4-carboxylate (CAS 827028-62-6)
- 3-Bromo-4-chloro-5-(piperidin-1-ylsulfonyl)pyridine (CAS 1352530-97-2)
- Cariprazine Impurity 69 (CAS CATO-C4X-240869)
- 3-(Benzyloxy)propyl 4-Toluenesulfonate (CAS 120758-24-9)
- N,N-Diethylpyridin-2-amine (CAS 36075-06-6)
- Hexapeptide-10 (CAS 146439-94-3)
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