H-Tyr(tBu)-OMe · HCl CAS 51482-39-4
| CAS No. | 51482-39-4 |
| Molecular Formula | C14H21NO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 287.78 g/mol gives H-Tyr(tBu)-OMe · HCl distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
H-Tyr(tBu)-OMe · HCl (CAS 51482-39-4) is a high-purity analytical reference standard with the molecular formula C14H21NO3HCl and a molecular weight of 287.78 g/mol.
The molecular framework of H-Tyr(tBu)-OMe · HCl (C14H21NO3HCl) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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 | C14H21NO3 HCl |
| Molecular Weight | 287.78 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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- 2-(((5-Bromothiophen-2-yl)methylene)amino)benzamide (CAS 304456-62-0)
- 5-Amino-2-cyclopropyl-4-oxazolecarboxylic Acid Ethyl Ester (CAS 1260743-08-5)
- 2-methyl-1H-imidazo[4,5-c]pyridine-4-carboxylic acid (CAS 933696-52-7)
- N-(3'-Cyano[1,1'-biphenyl]-4-yl)acetamide (CAS 893738-75-5)
- 5-Chloro-3-[(2-phenoxyethyl)sulfanyl]-1,2,4-thiadiazole (CAS 1326811-27-1)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
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