L-Leucine-d3-N-t-BOC H2O (methyl-d3) CAS 203645-42-5
| CAS No. | 203645-42-5 |
| Molecular Formula | - |
| 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 L-Leucine-d3-N-t-BOC H2O (methyl-d3).
L-Leucine-d3-N-t-BOC H2O (methyl-d3) (CAS 203645-42-5), molecular formula C11H18D3NO4H2O and molecular weight 252.32 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of L-Leucine-d3-N-t-BOC H2O (methyl-d3) (C11H18D3NO4H2O) is characterized by deuterium isotope labeling, an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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.
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 | C11H18D3NO4 H2O |
| Molecular Weight | 252.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 1 |
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- 4176-16-3 Valerenal 2-Propenal, 3-(2,4,5,6,7,7a-hexahydro-3,7-dimethyl-1H-inden-4-yl)-2-methyl-, (4S-(4alpha(E),7beta,7aalpha))- (CAS 4176-16-3)
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Why CATO?
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