4-((4-((4-Aminophenyl)sulfonyl)phenyl)amino)-4-oxobutanoic acid CAS 5934-14-5
| CAS No. | 5934-14-5 |
| Molecular Formula | C16H16N2O5S |
| Molecular Weight | 348.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-((4-((4-Aminophenyl)sulfonyl)phenyl)amino)-4-oxobutanoic acid (CAS 5934-14-5) is a high-purity analytical reference standard with the molecular formula C16H16N2O5S and a molecular weight of 348.37 g/mol.
4-((4-((4-Aminophenyl)sulfonyl)phenyl)amino)-4-oxobutanoic acid (C16H16N2O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
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), 4-((4-((4-Aminophenyl)sulfonyl)phenyl)amino)-4-oxobutanoic acid 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 | C16H16N2O5S |
| Molecular Weight | 348.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Aminophenyl Standards
- Bis(4-aminophenyl) terephthalate (CAS 16926-73-1)
- (4-Aminophenyl)(4-(4-(trifluoromethyl)phenyl)piperazin-1-yl)methanone (CAS 885949-76-8)
- 2-((4-Aminophenyl)sulfonamido)benzo[d]thiazole-6-carboxylic acid (CAS 854060-37-0)
- Ethyl 3-((2-aminophenyl)thio)-5-chloro-1H-indole-2-carboxylate (CAS 206256-24-8)
- N-(3-Aminophenyl)-N-(4-methoxybenzyl)-4-methylbenzamide (CAS 305851-23-4)
- (4-(4-Aminophenyl)piperazin-1-yl)(5-chloro-2-methoxyphenyl)methanone (CAS 892693-46-8)
- 2-[(4-Aminophenyl)thio]-N-(2-bromophenyl)-propanamide (CAS 913246-00-1)
- n-(2-((4-Aminophenyl)amino)-4'-methyl-[4,5'-bithiazol]-2'-yl)acetamide (CAS 315705-86-3)
Recommended Standards
- 3',6'-Dihydroxy-3H-spiro[isobenzofuran-1,9'-thioxanthen]-3-one (CAS 94109-78-1)
- 4-(4-Acetamidobenzenesulfonamidomethyl)benzoic acid (CAS 65019-55-8)
- 3-(4-Fluorophenyl)-6-(4-methoxyphenyl)-5-methylpyrazolo[1,5-a]pyrimidin-7-amine (CAS 685109-42-6)
- 4-(4-Acetamidophenylsulfonamido)phenylacetic Acid (CAS 82101-23-3)
- 2,2-Difluoro-2-(5-fluoropyridin-2-yl)ethan-1-ol (CAS 1824012-53-4)
- 2-(Aminomethyl)-3-cyano-4-(difluoromethyl)-6-fluoropyridine (CAS 1804485-53-7)
- 7-Bromo-[1,2,4]triazolo[1,5-a]pyridine (CAS 1053655-66-5)
- Bis((((phenylsulfonyl)methyl)sulfinyl)oxy)zinc (CAS 1582310-45-9)
- 6-Chloro-3-(propan-2-yl)-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 1236676-48-4)
- (4-Chlorophenyl)trihexadecylsilane (CAS 18822-35-0)
- 2-Cyanophenylzinc bromide 0.5 M in Tetrahydrofuran (CAS 131379-17-4)
- 2-Methyl-N-1,N-1-dipropyl-1,4-benzenediamine (CAS 1094646-24-8)
- 3-Methyl-4-(pyrrolidin-1-yl)aniline hydrochloride (CAS 68155-75-9)
- Tau Peptide (273-284) trifluoroacetate salt (CAS 1663490-91-2)
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