(S)-2-((S)-2-((S)-2-Amino-3-phenylpropanamido)-3-(1H-imidazol-4-yl)propanamido)-3-phenylpropanoic acid CAS 90653-53-5
| CAS No. | 90653-53-5 |
| Molecular Formula | C24H27N5O4 |
| Molecular Weight | 449.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(S)-2-((S)-2-((S)-2-Amino-3-phenylpropanamido)-3-(1H-imidazol-4-yl)propanamido)-3-phenylpropanoic acid (CAS 90653-53-5), molecular formula C24H27N5O4 and molecular weight 449.50 g/mol, is a CATO reference standard with documented purity and traceability.
(S)-2-((S)-2-((S)-2-Amino-3-phenylpropanamido)-3-(1H-imidazol-4-yl)propanamido)-3-phenylpropanoic acid (C24H27N5O4) contains a flavonoid core, an amide 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.
Physical & Chemical Properties
| Molecular Formula | C24H27N5O4 |
| Molecular Weight | 449.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 5 |
Recommended Standards
- 3'-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)-[1,1'-biphenyl]-4-carboxylic acid (CAS 173911-23-4)
- 2'-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)-[1,1'-biphenyl]-2-carboxylic acid (CAS 946716-21-8)
- Iberdomide (CC220) (CAS 1323403-33-3)
- 2-((((7,8-Dimethyl-2-oxo-2H-chromen-4-yl)methyl)(ethyl)amino)methyl)-6,7-dimethoxyquinazolin-4(3H)-one (CAS 854131-39-8)
- 2-Amino-5-chlorobenzaldehyde (CAS 20028-53-9)
- tert-Butyl (5-methylpyridin-2-yl)carbamate (CAS 562074-43-5)
- 4,4,5,5-Tetramethyl-2-(3-((tetrahydro-2h-pyran-2-yl)methoxy)-5-(trifluoromethyl)phenyl)-1,3,2-dioxaborolane (CAS 2096341-86-3)
- Calcium silicate (CAS 1344-95-2)
- Poly(dimethoxysiloxane) (CAS 25498-02-6)
- 1-Chloro-4-ethoxy-3,5-difluoro-2-methylbenzene (CAS 1881321-95-4)
- (5S)-N-(5-Amino-1-carboxypentyl)iminodiacetic Acid (CAS 113231-05-3)
- 2-((4-(2-(2-Fluorophenoxy)acetamido)but-2-yn-1-yl)oxy)benzamide (CAS 1421508-12-4)
- 10-Methyl-3-(6-nitroisoquinolin-3-yl)-3,10-diazabicyclo[4.3.1]decane (CAS 649757-11-9)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
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