(S)-3-(4-Aminophenyl)-2-((S)-1-tosylpyrrolidine-2-carboxamido)propanoic acid CAS 220149-81-5
| CAS No. | 220149-81-5 |
| Molecular Formula | C21H25N3O5S |
| Molecular Weight | 431.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (S)-3-(4-Aminophenyl)-2-((S)-1-tosylpyrrolidine-2-carboxamido)propanoic acid is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies (S)-3-(4-Aminophenyl)-2-((S)-1-tosylpyrrolidine-2-carboxamido)propanoic acid (CAS 220149-81-5), a certified reference material (molecular formula C21H25N3O5S, MW 431.51 g/mol) for analytical method development and quality control.
(S)-3-(4-Aminophenyl)-2-((S)-1-tosylpyrrolidine-2-carboxamido)propanoic acid (C21H25N3O5S) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C21H25N3O5S |
| Molecular Weight | 431.51 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related S Standards
- p-Aminophenyl β-D-Lactopyranoside (CAS 17691-02-0)
- p-Aminophenyl β-D-Cellobioside (CAS 42935-24-0)
- 2-(4-Aminophenyl)-5-heptadecyl-1-methyl-1H-pyrazol-3(2H)-one (CAS 194799-55-8)
- 3-[4-[3-(4-Aminophenyl)-1-ethyl-1H-pyrazol-4-yl]-1H-pyrrolo[2,3-b]pyridin-2-yl]-N,N-dimethylbenzenemethanamine (CAS 942919-53-1)
- 4-Aminophenyl 2,3,4-Tri-O-acetyl-β-D-glucuronide Methyl Ester (CAS 25218-22-8)
- 3-[(4-Aminophenyl)thio]-1-(4-iodophenyl)pyrrolidine-2,5-dione (CAS 903777-35-5)
- 3-(p-Aminophenyl)fluorescein (CAS 359010-70-1)
- (Z)-3-((2-aminophenyl)(1H-indol-2-yl)methylene)-1-benzylindolin-2-one (CAS 2067378-35-0)
Recommended Standards
- (4-((4-(Tert-butyl)phenyl)sulfonyl)piperazin-1-yl)(4-nitrophenyl)methanone (CAS 439094-02-7)
- 1-(2-Hydroxyethyl)-N,N-bis(4-methoxybenzyl)-1H-pyrazole-3-sulfonamide (CAS 2281768-22-5)
- Xanomeline impurity 30 (CAS CATO-C4X-330130)
- 1-(4-Cyano-2-(4-(N,N-diethylsulfamoyl)phenyl)oxazol-5-yl)piperidine-4-carboxamide (CAS 941243-13-6)
- 3-(5-Fluoro-3-indolyl)propanoic Acid (CAS 7394-78-7)
- 1-Allyl-2-oxocyclohexanecarboxylic acid (CAS 89100-19-6)
- 1-Chloro-2-methyl-3-trifluoromethylsulfanyl-benzene (CAS 933674-77-2)
- 6-(3,5-Difluorophenyl)-2-methylpyrimidin-4-ol (CAS 1690654-47-7)
- n-(1-Amino-2-methylpropan-2-yl)-2-methoxyacetamide (CAS 1343299-22-8)
- (2S,3S)-3-Amino-2-hydroxy-3-phenylpropanoic Acid (CAS 55325-50-3)
- 1,4-Dihydropyridine-4-carboxylic acid (CAS 182301-56-0)
- 2-(tert-Butoxy)-5-cyclopropoxy-4-iodopyridine (CAS 1243441-54-4)
- 2-Bromo-4-cyclopropoxy-N,N-dimethylpyridin-3-amine (CAS 1243384-58-8)
- Myristoyl Pentapeptide -4 acetate (CAS 959610-30-1(free base))
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