(S)-N-((S)-1-Amino-1-oxo-3-phenylpropan-2-yl)-2-((S)-2-((S)-2-amino-3-phenylpropanamido)-4-(methylthio)butanamido)-5-guanidinopentanamide CAS 64190-70-1
| CAS No. | 64190-70-1 |
| Molecular Formula | C29H42N8O4S |
| Molecular Weight | 598.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
(S)-N-((S)-1-Amino-1-oxo-3-phenylpropan-2-yl)-2-((S)-2-((S)-2-amino-3-phenylpropanamido)-4-(methylthio)butanamido)-5-guanidinopentanamide (CAS 64190-70-1) is a high-purity analytical reference standard with the molecular formula C29H42N8O4S and a molecular weight of 598.76 g/mol.
Structurally, (S)-N-((S)-1-Amino-1-oxo-3-phenylpropan-2-yl)-2-((S)-2-((S)-2-amino-3-phenylpropanamido)-4-(methylthio)butanamido)-5-guanidinopentanamide (C29H42N8O4S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 598.76 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C29H42N8O4S |
| Molecular Weight | 598.76 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 1 |
Recommended Standards
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- Glicaramide (CAS 36980-34-4)
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- Cefuroxime Impurity 110 (CAS CATO-C4X-1245110)
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