Cyclohexyl p-toluenesulfonate CAS 953-91-3
| CAS No. | 953-91-3 |
| Molecular Formula | C13H18O3S |
| Molecular Weight | 254.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cyclohexyl p-toluenesulfonate (CAS 953-91-3), a certified reference material (molecular formula C13H18O3S, MW 254.35 g/mol) for analytical method development and quality control.
Structurally, Cyclohexyl p-toluenesulfonate (C13H18O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 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 254.35 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), Cyclohexyl p-toluenesulfonate 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 | C13H18O3S |
| Molecular Weight | 254.35 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |
Related Cyclohexyl Standards
- Cyclohexyl 3-methyl-5-(methylamino)isothiazole-4-carboxylate (CAS 1485276-25-2)
- N-Cyclohexyl 2-aminobenzenesulfonamide (CAS 77516-54-2)
- Ethyl 7-cyclohexyl-7-oxoheptanoate (CAS 898753-77-0)
- 3-(1-Cyclohexyl-2,5-dioxoimidazolidin-4-yl)propanoic acid (CAS 1008213-43-1)
- 3-(Cyclohexyl(2-hydroxyethyl)amino)-1,1,1-trifluoropropan-2-ol (CAS 477858-42-7)
- 2-Cyclohexyl-4-quinolinecarboxylic acid (CAS 174636-91-0)
- N-CYclohexyl-4-hydroxybenzene-1-sulfonamide (CAS 1082262-38-1)
- N-CYclohexyl-3-hydroxybenzene-1-sulfonamide (CAS 1082469-98-4)
Recommended Standards
- Cyclohexa-2,5-dienecarboxylic acid (CAS 4794-04-1)
- Cyclopentylmethyl 4-methylbenzene-1-sulfonate (CAS 21856-53-1)
- Cis-3-ethyl-4-tosyltetrahydrofuran (CAS 89478-97-7)
- Ethyl 2-(cyclopentylamino)-4-methylthiazole-5-carboxylate (CAS 735306-56-6)
- 3-Acetamidopyridine-4-carboxylic acid (CAS 215103-12-1)
- 1-Benzyl-3-(5-nitrofuran-2-yl)-1H-pyrazole-4-carboxamide (CAS 61651-04-5)
- 2-(4-(Aminomethyl)-5-(difluoromethyl)-2-(trifluoromethyl)pyridin-3-yl)acetonitrile (CAS 1361886-54-5)
- p-Coumaryl Alcohol (CAS 3690-05-9)
- (S)-6-Bromo-2-methyl-2,3-dihydroimidazo[2,1-b]oxazole (CAS 2889453-41-0)
- 4-Fluoro-2-(phenylethynyl)aniline (CAS 875930-15-7)
- 5-Bromo-2-phenethoxybenzoic acid (CAS 887029-41-6)
- 4-[(trifluoromethyl)sulfanyl]benzene-1-sulfonyl chloride (CAS 67216-75-5)
- Ethyl 3-(3-ethoxy-3-oxopropyl)-4-oxopiperidine-1-carboxylate (CAS 130819-99-7)
- Peptide Impurity 28 (CAS 1350456-64-2)
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