Methyl (S)-4-amino-5-(4-methylpiperazin-1-yl)-5-oxopentanoate dihydrochloride CAS 1990505-77-5
| CAS No. | 1990505-77-5 |
| Molecular Formula | C11H21N3O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Methyl (S)-4-amino-5-(4-methylpiperazin-1-yl)-5-oxopentanoate dihydrochloride (CAS 1990505-77-5), a certified reference material (molecular formula C11H21N3O3HCl, MW 279.76 g/mol) for analytical method development and quality control.
The molecular framework of Methyl (S)-4-amino-5-(4-methylpiperazin-1-yl)-5-oxopentanoate dihydrochloride (C11H21N3O3HCl) 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 the protonation state of its nitrogen-containing groups, 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.
Physical & Chemical Properties
| Molecular Formula | C11H21N3O3 2*HCl |
| Molecular Weight | 279.76 g/mol |
| 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 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) | 2.0 |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- Ethyl (1R,2S)-2-(boc-amino)cyclopentanecarboxylate (CAS 1140972-29-7)
- 2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carbonyl chloride (CAS 3346-64-3)
- 3-(3-Methylphenoxy)phenylboronic acid (CAS 2377609-33-9)
- Sodium 4-(4-chlorophenyl)-1,1,1-trifluoro-4-oxobut-2-en-2-olate (CAS 1007036-48-7)
- 3-Chloro-5-iodobenzoic Acid (CAS 289039-25-4)
- Bromopyrogallol Red (CAS 16574-43-9)
- Letermovir Impurity 94 (CAS CATO-C4X-291594)
- 4-[5-(Chloromethyl)-1,2,4-oxadiazol-3-yl]-N-(2,2,2-trifluoroethyl)benzamide (CAS 1119449-64-7)
- 1-Bromo-2-((4-methylpentyl)oxy)cyclopentane (CAS 1251219-30-3)
- Peptide Impurity 15 (CAS 1227750-69-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com