(R)-2-((S)-2-Amino-3-(4-hydroxyphenyl)propanamido)-3-(1H-indol-3-yl)propanoic acid CAS 22032-67-3
| CAS No. | 22032-67-3 |
| Molecular Formula | C20H21N3O4 |
| Molecular Weight | 367.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (R)-2-((S)-2-Amino-3-(4-hydroxyphenyl)propanamido)-3-(1H-indol-3-yl)propanoic acid is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(R)-2-((S)-2-Amino-3-(4-hydroxyphenyl)propanamido)-3-(1H-indol-3-yl)propanoic acid (CAS 22032-67-3) is a high-purity analytical reference standard with the molecular formula C20H21N3O4 and a molecular weight of 367.40 g/mol.
Structurally, (R)-2-((S)-2-Amino-3-(4-hydroxyphenyl)propanamido)-3-(1H-indol-3-yl)propanoic acid (C20H21N3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 367.40 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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), (R)-2-((S)-2-Amino-3-(4-hydroxyphenyl)propanamido)-3-(1H-indol-3-yl)propanoic 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 | C20H21N3O4 |
| Molecular Weight | 367.40 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |
Recommended Standards
- (2S,4R)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-4-hydroxypiperidine-2-carboxylic acid (CAS 653589-37-8)
- (R)-Methyl 2-(((benzyloxy)carbonyl)amino)-3-(7-methyl-1H-indazol-5-yl)propanoate (CAS 855778-40-4)
- (2R,5S)-5-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)tetrahydrofuran-2-carboxylic acid (CAS 779358-57-5)
- (R)-tert-Butyl 2-(1,3-dioxoisoindolin-2-yloxy)-3-phenylpropanoate (CAS 380886-37-3)
- 5-(4-Methoxyphenyl)-N-(2-(methylthio)phenyl)oxazole-2-carboxamide (CAS 955914-59-7)
- 5-(3-Chlorophenoxymethyl)furan-2-carbaldehyde (CAS 438220-92-9)
- Ethyl 2-oxo-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-chromene-3-carboxylate (CAS 1442461-70-2)
- 7-(Difluoromethyl)-5-(4-methoxyphenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 492434-20-5)
- N-(naphthalen-1-yl)-2,3-dihydrobenzo[b][1,4]dioxin-6-amine (CAS 1820711-54-3)
- 5-Methoxy-2-(1-methyl-1H-imidazol-4-yl)pyrimidin-4(3H)-one (CAS 1933672-26-4)
- 6-methyl-7H-pyrrolo[2,3-d]pyrimidin-4-ol (CAS 99898-85-8)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
- (3-(Cyclopropylcarbamoyl)-4-fluorophenyl)boronic acid (CAS 1704081-55-9)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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