Methyl 2-chloro-5-(methylsulfonyl)benzoate CAS 151104-30-2
| CAS No. | 151104-30-2 |
| Molecular Formula | C9H9ClO4S |
| Molecular Weight | 248.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Methyl 2-chloro-5-(methylsulfonyl)benzoate (CAS 151104-30-2), a certified reference material (molecular formula C9H9ClO4S, MW 248.68 g/mol) for analytical method development and quality control.
Structurally, Methyl 2-chloro-5-(methylsulfonyl)benzoate (C9H9ClO4S) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 248.68 g/mol, it falls into the medium-molecular-weight range. 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.
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.) | 2000 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 2-Chloro-3-methyl-4-(methylsulfonyl)benzoic acid (CAS 106904-09-0)
- 2-(3-Chloro-4-(methylsulfonyl)phenyl)acetic acid (CAS 1265819-83-7)
- 4-Chloro-2-cyclopropyl-6-(4-fluorophenyl)pyrimidine (CAS 1354753-95-9)
- 5-chloro-2-(ethanesulfonyl)benzoic acid (CAS 1384428-08-3)
- Methyl 3-chloro-5-(methylsulfonyl)benzoate (CAS 151104-62-0)
- 4-Chloro-2-methyl-5-(methylsulfonyl)-benzoic Acid (CAS 176309-00-5)
- 1-(3-Chloro-4-fluorophenyl)-2-phenylethan-1-one (CAS 845781-19-3)
- 1-(3-Chloro-5-fluorophenyl)-2-phenylethan-1-one (CAS 845781-21-7)
Recommended Standards
- Methyl 2-((2-chlorophenyl)sulfonyl)acetate (CAS 145449-37-2)
- Methyl 2-(chlorosulfonyl)-6-methylbenzoate (CAS 139665-75-1)
- 3-(Chlorosulfonyl)-4,5-dimethylbenzoic acid (CAS 151104-64-2)
- Methyl 2-(4-chlorobenzenesulfonyl)acetate (CAS 15446-25-0)
- Rotigotine Racemate HCl (CAS 102120-99-0)
- 6-ethyl-3-(3-methoxy-4-(4-(4-nitrosopiperazin-1-yl)piperidin-1-yl)benzyl)-5-(morpholinomethyl)pyrazine-2-carboxamide (CAS CATO-C3D-26206)
- 1-(3,4-Dichlorobenzoyl)piperidin-4-one (CAS 223632-67-5)
- n-(3-Cyanophenyl)-2-hydroxyacetamide (CAS 1094627-46-9)
- Tedizolid lmpurity (CAS 2095840-88-1)
- Benzyl 2-((2-chloro-N-cyclopropylacetamido)methyl)pyrrolidine-1-carboxylate (CAS 1353963-84-4)
- Ethyl 2-(2-((4-methylbenzyl)thio)-4,5-diphenyl-1H-imidazol-1-yl)acetate (CAS 339278-02-3)
- 2-Chloro-4-methyl-5H-pyrrolo[3,2-d]pyrimidine (CAS 1140241-22-0)
- 1-(2,4-Dichloropyrimidin-5-yl)ethan-1-ol (CAS 130825-17-1)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com