(R)-2-hydroxybutyl 4-methylbenzenesulfonate CAS 103745-07-9
| CAS No. | 103745-07-9 |
| Molecular Formula | C11H16O4S |
| Molecular Weight | 244.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H16O4S, (R)-2-hydroxybutyl 4-methylbenzenesulfonate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 244.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies (R)-2-hydroxybutyl 4-methylbenzenesulfonate (CAS 103745-07-9), a certified reference material (molecular formula C11H16O4S, MW 244.31 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C11H16O4S |
| Molecular Weight | 244.31 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Sulfur Atoms | 1 |
Related R Standards
- 2-Hydroxybutyl 4-methylbenzenesulfonate (CAS 143693-24-7)
- (S)-2-hydroxybutyl 4-methylbenzenesulfonate (CAS 143731-32-2)
- (R)-3-Hydroxybutyl 4-methylbenzenesulfonate (CAS 75351-36-9)
- 4-Hydroxybutyl 4-methylbenzenesulfonate (CAS 6972-09-4)
- Methyl 2-(4-(4-hydroxybutyl)phenyl)-2-methylpropanoate (CAS 154825-93-1)
- 2-(4-hydroxybutyl) 5-methyl furan-2,5-dicarboxylate (CAS CATO-C3D-262626)
- 3-(4-Hydroxybutyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one (CAS 138892-94-1)
- 4-[(3-Hydroxybutyl)amino]-3-nitrobenzoic acid (CAS 1219957-45-5)
Recommended Standards
- Tert-butyl ((3aS,6S,6aR)-6-fluorohexahydrocyclopenta[c]pyrrol-3a(1H)-yl)carbamate (CAS 1037367-76-2)
- N-1-Benzyl-N-1-ethyl-2-fluoro-1,4-benzenediamine (CAS 1038733-91-3)
- Tert-butyl ((3aS,6R,6aR)-6-fluorohexahydrocyclopenta[c]pyrrol-3a(1H)-yl)carbamate (CAS 1037367-75-1)
- N1-benzyl-N1-ethyl-4-fluorobenzene-1,2-diamine (CAS 1038733-98-0)
- (2S)-2-aminobutane-1,4-diol hydrochloride (CAS 951305-22-9)
- 3-(4-Methoxyphenyl)-1-oxa-2,4,8-triazaspiro[4.5]dec-2-ene (CAS 37143-33-2)
- 1-(4-([1,2,4]Triazolo[4,3-b]pyridazin-6-yl)piperazin-1-yl)-2-(2-chlorophenyl)ethan-1-one (CAS 1058447-61-2)
- (5-Cyclopropyl-1-methyl-1h-pyrazol-3-yl)methanamine (CAS 1174305-90-8)
- Ethyl 2-(3-cyanopyridin-2-yl)acetate (CAS 86369-48-4)
- 1,1'-(4,6-Dihydroxy-5-propyl-1,3-phenylene)bis(ethan-1-one) (CAS 58805-52-0)
- 3-methylmorpholine-4-carboximidamide (CAS 1156999-01-7)
- Cefpodoxime Proxetil EP Impurity C (CAS 339528-86-8)
- 3-(4-Bromophenoxy)-6-methylpyridazine (CAS 368869-96-9)
- FLAG Epitope Peptide (CAS 98849-88-8)
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