4-Chloro-2-methyl-1-(methylsulfonyl)benzene CAS 10200-36-9
| CAS No. | 10200-36-9 |
| Molecular Formula | C8H9ClO2S |
| Molecular Weight | 204.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Chloro-2-methyl-1-(methylsulfonyl)benzene 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.
4-Chloro-2-methyl-1-(methylsulfonyl)benzene (CAS 10200-36-9), molecular formula C8H9ClO2S and molecular weight 204.67 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Chloro-2-methyl-1-(methylsulfonyl)benzene (C8H9ClO2S) 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 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 204.67 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C8H9ClO2S |
| Molecular Weight | 204.67 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-chloro-4,5-dimethoxybenzene-1-thiol (CAS 1094359-76-8)
- Methyl 4-chloro-5-ethylthiophene-2-carboxylate (CAS 1399655-29-8)
- 4-Chloro-5-propylthiophene-2-carboxylic acid (CAS 1399660-65-1)
- 2-Chloro-1-methyl-4-(methylsulfonyl)benzene (CAS 1671-18-7)
- 1-Chloro-2-(ethylsulfonyl)benzene (CAS 57321-29-6)
- 1-Chloro-3-ethanesulfonylbenzene (CAS 494870-50-7)
- 1-Chloro-4-(ethylsulfonyl)benzene (CAS 7205-80-3)
- Ethyl 5-chloro-4-methylthiophene-2-carboxylate (CAS 74598-04-2)
Recommended Standards
- Ruthenium ICP Standard (CAS 7440-18-8)
- N-(3-chlorophenyl)pyridin-4-amine (CAS 59235-78-8)
- ethyl 2-(5-chlorothiophen-2-yl)acetate (CAS 1123190-96-4)
- N-((1H-Pyrrol-2-yl)methylene)-4-chloroaniline (CAS 51305-60-3)
- 2-(4-Oxo-octahydro-1-benzofuran-2-yl)acetonitrile (CAS 1423034-97-2)
- 6-Bromocinnolin-4(1H)-one, 97% (CAS 552330-87-7)
- 4-Oxo-4-(o-tolyl)butanoic acid (CAS 6939-36-2)
- 4-(1H-Pyrrol-1-yl)phenethyl pyrimidine-5-carboxylate (CAS 823793-38-0)
- (2E)-3-[(4-Chlorophenyl)amino]-1-{3-[(2,4-dichlorophenyl)methoxy]phenyl}prop-2-en-1-one (CAS 478040-22-1)
- Paliperidone Impurity 86 (CAS CATO-C4X-172486)
- 2-benzyl-1,1-dioxo-1,2,5-thiadiazolidin-3-one (CAS 174466-61-6)
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