(S)-N-Ethyl-1-(((S)-2-((2S,3R)-3-hydroxy-2-((2R,3S)-3-methyl-2-((S)-3-methyl-2-(2-(2-(N-methylacetamido)acetamido)acetamido)butanamido)pentanamido)butanamido)pentanoyl)-L-isoleucyl-L-arginyl)pyrrolidine-2-carboxamide CAS 251579-55-2
| CAS No. | 251579-55-2 |
| Molecular Formula | C46H83N13O11 |
| Molecular Weight | 994.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (S)-N-Ethyl-1-(((S)-2-((2S,3R)-3-hydroxy-2-((2R,3S)-3-methyl-2-((S)-3-methyl-2-(2-(2-(N-methylacetamido)acetamido)acetamido)butanamido)pentanamido)butanamido)pentanoyl)-L-isoleucyl-L-arginyl)pyrrolidine-2-carboxamide is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(S)-N-Ethyl-1-(((S)-2-((2S,3R)-3-hydroxy-2-((2R,3S)-3-methyl-2-((S)-3-methyl-2-(2-(2-(N-methylacetamido)acetamido)acetamido)butanamido)pentanamido)butanamido)pentanoyl)-L-isoleucyl-L-arginyl)pyrrolidine-2-carboxamide (CAS 251579-55-2), molecular formula C46H83N13O11 and molecular weight 994.23 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C46H83N13O11, (S)-N-Ethyl-1-(((S)-2-((2S,3R)-3-hydroxy-2-((2R,3S)-3-methyl-2-((S)-3-methyl-2-(2-(2-(N-methylacetamido)acetamido)acetamido)butanamido)pentanamido)butanamido)pentanoyl)-L-isoleucyl-L-arginyl)pyrrolidine-2-carboxamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 994.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), (S)-N-Ethyl-1-(((S)-2-((2S,3R)-3-hydroxy-2-((2R,3S)-3-methyl-2-((S)-3-methyl-2-(2-(2-(N-methylacetamido)acetamido)acetamido)butanamido)pentanamido)butanamido)pentanoyl)-L-isoleucyl-L-arginyl)pyrrolidine-2-carboxamide 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 | C46H83N13O11 |
| Molecular Weight | 994.23 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 13 |
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