(4-Ethynylphenyl)methanesulfonyl chloride CAS 2228650-18-6
| CAS No. | 2228650-18-6 |
| Molecular Formula | C9H7ClO2S |
| Molecular Weight | 214.67 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-Ethynylphenyl)methanesulfonyl chloride.
(4-Ethynylphenyl)methanesulfonyl chloride (CAS 2228650-18-6), molecular formula C9H7ClO2S and molecular weight 214.67 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (4-Ethynylphenyl)methanesulfonyl chloride (C9H7ClO2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (4-Ethynylphenyl)methanesulfonyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H7ClO2S |
| Molecular Weight | 214.67 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Ethynylphenyl Standards
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- 4-((3-Ethynylphenyl)amino)-4-oxobutanoic acid (CAS 675828-53-2)
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Recommended Standards
- 4-Chloro-3-fluoro-2-(piperidin-1-yl)pyridine (CAS 1881289-10-6)
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- 7-chloro-3-methyl-1$l^{6}-benzothiophene-1,1-dione (CAS 17514-69-1)
- 1-(2-Chloro-4-fluorophenyl)piperazine (CAS 736122-94-4)
- Tert-butyl 4-(3-methoxy-3-oxopropanoyl)piperidine-1-carboxylate (CAS 479630-02-9)
- (E)-1,5-Diphenylcarbazone (CAS 119295-41-9)
- 2-Amino-5-bromo-4-isopropylbenzoic acid (CAS 859937-44-3)
- 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-fluoro-5-methoxybenzoic acid (CAS 2243516-10-9)
- 7-Bromo-1,1-dimethyl-1,2,3,4-tetrahydroisoquinoline (CAS 1393546-31-0)
- 2-hydroxy-N,N-dimethylpropane-1-sulfonamide (CAS 2044713-97-3)
- Bis(heptafluoroisopropyl)ketone (CAS 813-44-5)
- L-Arginyl-L-arginyl-L-lysyl-L-arginine (CAS 116273-52-0)
- 5-Amino-2-chloro-n-ethylbenzamide (CAS 150108-52-4)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
Why CATO?
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