(R)-2-Hydroxy-2-phenylethyl 4-methylbenzenesulfonate CAS 40434-87-5
| CAS No. | 40434-87-5 |
| Molecular Formula | C15H16O4S |
| Molecular Weight | 292.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (R)-2-Hydroxy-2-phenylethyl 4-methylbenzenesulfonate 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.
(R)-2-Hydroxy-2-phenylethyl 4-methylbenzenesulfonate (CAS 40434-87-5) is a high-purity analytical reference standard with the molecular formula C15H16O4S and a molecular weight of 292.35 g/mol.
Structurally, (R)-2-Hydroxy-2-phenylethyl 4-methylbenzenesulfonate (C15H16O4S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 292.35 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C15H16O4S |
| Molecular Weight | 292.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Sulfur Atoms | 1 |
Related R Standards
- (S)-2-Hydroxy-2-phenylethyl 4-methylbenzenesulfonate (CAS 40435-14-1)
- 2-Hydroxy-6-(1-piperidinylsulfonyl)quinoline (CAS 891900-49-5)
- Benzyl 4-(2-hydroxy-2-methylpropyl)piperazine-1-carboxylate (CAS 1339386-84-3)
- 4-Hydroxy-2'-(pyrrolidine-3-carbonyl)-[1,1'-biphenyl]-3-carbonitrile (CAS 1261890-12-3)
- 3-Hydroxy-2'-(pyrrolidine-3-carbonyl)-[1,1'-biphenyl]-4-carbonitrile (CAS 1261951-11-4)
- 5-Hydroxy-2'-(pyrrolidine-3-carbonyl)-[1,1'-biphenyl]-3-carbonitrile (CAS 1261999-84-1)
- 8-(2-Hydroxy-3-methoxy-3-methylbutyl)-7-methoxy-2H-chromen-2-one (CAS 155281-50-8)
- (2-Hydroxy-3,5-dimethylphenyl)(1-phenyl-1H-pyrazol-4-yl)methanone (CAS 93065-68-0)
Recommended Standards
- 4,4'-(Thiophene-2,5-diyl)dibenzaldehyde (CAS 193903-62-7)
- Tert-butyl (3aR,8S,8aR)-8-amino-4-fluoro-3,3a,8,8a-tetrahydroindeno[1,2-c]pyrrole-2(1H)-carboxylate (CAS 1932520-96-1)
- 1-(2-((2,5-Dimethoxyphenyl)amino)-4-methylthiazol-5-yl)ethan-1-one (CAS 398472-44-1)
- Tert-butyl 8-amino-4-fluoro-3,3a,8,8a-tetrahydroindeno[1,2-c]pyrrole-2(1H)-carboxylate (CAS 1824557-05-2)
- 3-[4-(N,N-Dimethylaminocarbonyl)phenyl]-4-fluorobenzoic acid (CAS 1262010-01-4)
- 4-(Difluoromethyl)-2-methyl-3-nitropyridine (CAS 1805312-10-0)
- (3R,4S)-1-(tert-butoxycarbonyl)-4-(3,4-difluorophenyl)pyrrolidine-3-carboxylic acid (CAS 2227756-36-5)
- Rifamputin Nitrogen Oxide (CAS 645406-37-7)
- N-(2-Fluoro-5-methylphenyl)-3-methylbenzamide (CAS 876933-54-9)
- 2,2,2-Trifluoro-N-(2-methoxy-3,5-dinitrophenethyl)acetamide (CAS 1161880-88-1)
- 3-Bromo-1,2-dihydroacenaphthylene (CAS 5209-31-4)
- 2,6-Di((E)-styryl)-4H-pyran-4-one (CAS 17173-83-0)
- Ethyl 2-(4-methoxy-3,5-dimethylphenyl)-2-oxoacetate (CAS 107642-57-9)
- Neuropeptide FF (5-8) (CAS 152050-35-6)
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