4-Methylbenzenesulfonic acid 2-(methylamino)-2-oxo-1(S)-phenylethyl ester CAS 871224-68-9
| CAS No. | 871224-68-9 |
| Molecular Formula | C16H17NO4S |
| Molecular Weight | 319.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methylbenzenesulfonic acid 2-(methylamino)-2-oxo-1(S)-phenylethyl ester (C16H17NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies 4-Methylbenzenesulfonic acid 2-(methylamino)-2-oxo-1(S)-phenylethyl ester (CAS 871224-68-9), a certified reference material (molecular formula C16H17NO4S, MW 319.38 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.
As a certified reference material (CRM), 4-Methylbenzenesulfonic acid 2-(methylamino)-2-oxo-1(S)-phenylethyl ester 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 | C16H17NO4S |
| Molecular Weight | 319.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylbenzenesulfonic Standards
- 4-Methylbenzenesulfonic Acid 2-[(4-Hydroxyphenyl)phenylmethylene]hydrazide (CAS 147169-63-9)
- Methylbenzenesulfonic acid (2E)-2-(2,2,2-trifluoroethylidene)hydrazide (CAS 888071-59-8)
- 4-Methylbenzenesulfonic acid 2-(2-hydroxyethoxy)ethyl ester (CAS 118591-58-5)
- 2-Methylbenzenesulfonic Acid (CAS 88-20-0)
- 4-Methylbenzenesulfonic Acid 2-[[4-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]phenyl]phenylmethylene]hydrazide (CAS 147169-61-7)
- 4-Methylbenzenesulfonic acid;3-oxa-6-azabicyclo[3.1.1]heptane (CAS 1414860-36-8)
- 2-Methylbenzenesulfonic acid dihydrate (CAS 68066-37-5)
- 3-Methylbenzenesulfonic acid hydrate (CAS 312619-56-0)
Recommended Standards
- 4-{[(3-Methylphenyl)(methylsulfonyl)amino]methyl}benzoic acid (CAS 353502-15-5)
- 4-Methyl-N-[2-(3-methylbutanoyl)-3-oxo-2,3-dihydro-1,2,4-thiadiazol-5-yl]benzamide (CAS 478031-93-5)
- 4-[(4-Methylbenzyl)(methylsulfonyl)amino]benzoic acid (CAS 446259-00-3)
- 5-(6-Methyl-2-phenylquinolin-4-yl)-1,3,4-oxadiazole-2(3H)-thione (CAS 90074-17-2)
- 2-Fluoro-4,5-dinitrobenzoic acid (CAS 393-95-3)
- Methyl 2-bromo-4-formyl-1-methyl-1H-imidazole-5-carboxylate (CAS 2416993-18-3)
- 2-(Difluoromethoxy)-5-fluorobenzo[d]oxazole (CAS 1806395-31-2)
- Pyrrolidin-3-ylmethanol hydrochloride hydrate (CAS 1452519-32-2)
- 2-(4-Methyl-2-thioxothiazol-3(2H)-yl)acetic acid (CAS 31090-12-7)
- IXIC-4F (CAS 2234274-64-5)
- O-(2-Methoxyethyl)hydroxylamine HCl (CAS 82172-73-4)
- 5-(4-Chloro-3-nitrophenyl)-3-(2,6-difluorophenyl)-1,2,4-oxadiazole (CAS 1710644-11-3)
- (OC-6-21)-Trichlorotris(dimethylphenylphosphine)rhenium (CAS 14710-16-8)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
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