H-Thr(tBu)-allyl ester · HCl CAS 218938-63-7
| CAS No. | 218938-63-7 |
| Molecular Formula | C11H21NO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including H-Thr(tBu)-allyl ester · HCl.
H-Thr(tBu)-allyl ester · HCl (CAS 218938-63-7) is a high-purity analytical reference standard with the molecular formula C11H21NO3HCl and a molecular weight of 251.75 g/mol.
The molecular framework of H-Thr(tBu)-allyl ester · HCl (C11H21NO3HCl) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C11H21NO3 HCl |
| Molecular Weight | 251.75 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 2019 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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