(S)-2-Acetamido-N-((S)-1-((2-amino-2-oxoethyl)amino)-1-oxopropan-2-yl)-3-(1H-indol-3-yl)propanamide CAS 71525-91-2
| CAS No. | 71525-91-2 |
| Molecular Formula | C18H23N5O4 |
| Molecular Weight | 373.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(S)-2-Acetamido-N-((S)-1-((2-amino-2-oxoethyl)amino)-1-oxopropan-2-yl)-3-(1H-indol-3-yl)propanamide (CAS 71525-91-2) is a high-purity analytical reference standard with the molecular formula C18H23N5O4 and a molecular weight of 373.41 g/mol.
The molecular framework of (S)-2-Acetamido-N-((S)-1-((2-amino-2-oxoethyl)amino)-1-oxopropan-2-yl)-3-(1H-indol-3-yl)propanamide (C18H23N5O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C18H23N5O4 |
| Molecular Weight | 373.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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.) | 1977 |
| Nitrogen Atoms | 5 |
Related S Standards
- (S)-2-Acetamido-N-(2-(((S)-1-amino-1-oxopropan-2-yl)amino)-2-oxoethyl)-3-(1H-indol-3-yl)propanamide (CAS 71525-89-8)
- 2-Acetamido-N1-(4-fluorobenzyl)-N3-(4-methoxyphenyl)malonamide (CAS 551921-07-4)
- (R)-2-Acetamido-3-((2-amino-4-(5-nitrofuran-2-yl)thiazol-5-yl)thio)propanoic acid (CAS 113790-27-5)
- 2-Acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl Azide (CAS 6205-69-2)
- Ethyl 2-acetamido-6-bromo-7-methoxybenzo[b]thiophene-3-carboxylate (CAS 113407-95-7)
- 2-Acetamido-N-(2-benzoyl-4-bromophenyl)acetamide (CAS 313502-80-6)
- Ethyl 2-acetamido-3-4-6-tri-O-acetyl-2-deoxy-β-D-glucopyranoside (CAS 76155-50-5)
- N-((5-Acetamido-1,3,4-thiadiazol-2-yl)sulfonyl)-4-nitrobenzamide (CAS 827624-94-2)
Recommended Standards
- tert-Butyl ((1R,2R)-2-((4-(trifluoromethyl)benzyl)oxy)cyclohexyl)carbamate (CAS 1951424-84-2)
- 7-bromo-5-chloro-4-iodo-chromane (CAS 1935078-71-9)
- 1,1,1-Trifluoro-N-((1S,2S)-2-(phenylthio)-2,3-dihydro-1H-inden-1-yl)methanesulfonamide (CAS 2102520-57-8)
- 6-bromo-8-chloro-4-iodo-chromane (CAS 1935052-20-2)
- 2-(tert-Butoxy)-3-chlorophenol (CAS 56207-42-2)
- 5-Fluoro-2-nitrobenzonitrile (CAS 50594-78-0)
- (3|A,5|A,12|A)-24,24-Diphenyl-chol-23-ene-3,12-diol 3,12-Diacetoxy-bis-nor-cholanyldiphenylethylene 53608-88-1 NSC 82872 (CAS 53608-88-1)
- 3-(2-Chloro-6-phenylpyridin-3-yl)-5-(trifluoromethyl)-1,2,4-oxadiazole (CAS 1198475-48-7)
- 2-Chloro-6-(methoxycarbonyl)pyridine-4-boronic acid (CAS 2225170-53-4)
- (S)-N-Ethyl-N-(1-(2-hydroxyethyl)pyrrolidin-3-yl)acetamide (CAS 1353995-14-8)
- 4-Chloro-2-(methylsulfonyl)benzoic acid (CAS 142994-03-4)
- 2-Hydroxy-9,10-anthraquinone (CAS 605-32-3)
- Methyl 5-bromo-2-morpholinobenzoate (CAS 1131587-79-5)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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