(2S,3R)-(R)-1-((3S,6S,9S,12S,18R,21S,22R)-21-Acetamido-18-benzyl-22-isopropyl-3-((R)-1-methoxyethyl)-4,9,10,12,16-pentamethyl-15-methylene-2,5,8,11,14,17,20-heptaoxo-1,19-dioxa-4,7,10,13,16-pentaazacyclodocosan-6-yl)-2-methylpropyl 3-hydroxy-4-methyl-2-propionamidopentanoate CAS 107530-18-7
| CAS No. | 107530-18-7 |
| Molecular Formula | C49H75N7O15 |
| Molecular Weight | 1002.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2S,3R)-(R)-1-((3S,6S,9S,12S,18R,21S,22R)-21-Acetamido-18-benzyl-22-isopropyl-3-((R)-1-methoxyethyl)-4,9,10,12,16-pentamethyl-15-methylene-2,5,8,11,14,17,20-heptaoxo-1,19-dioxa-4,7,10,13,16-pentaazacyclodocosan-6-yl)-2-methylpropyl 3-hydroxy-4-methyl-2-propionamidopentanoate (CAS 107530-18-7) is a high-purity analytical reference standard with the molecular formula C49H75N7O15 and a molecular weight of 1002.16 g/mol.
Based on its molecular formula C49H75N7O15, (2S,3R)-(R)-1-((3S,6S,9S,12S,18R,21S,22R)-21-Acetamido-18-benzyl-22-isopropyl-3-((R)-1-methoxyethyl)-4,9,10,12,16-pentamethyl-15-methylene-2,5,8,11,14,17,20-heptaoxo-1,19-dioxa-4,7,10,13,16-pentaazacyclodocosan-6-yl)-2-methylpropyl 3-hydroxy-4-methyl-2-propionamidopentanoate 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 1002.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C49H75N7O15 |
| Molecular Weight | 1002.16 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 7 |
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