N-(Acetyl-d3)-S-[4-(2-pyridinyl)benzyl]-L-cysteine CAS 1795785-71-5
| CAS No. | 1795785-71-5 |
| Molecular Formula | - |
| Molecular Weight | 333.42 g/mol |
| 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 N-(Acetyl-d3)-S-[4-(2-pyridinyl)benzyl]-L-cysteine.
N-(Acetyl-d3)-S-[4-(2-pyridinyl)benzyl]-L-cysteine (CAS 1795785-71-5), molecular formula C17H15D3N2O3S and molecular weight 333.42 g/mol, is a CATO reference standard with documented purity and traceability.
N-(Acetyl-d3)-S-[4-(2-pyridinyl)benzyl]-L-cysteine (C17H15D3N2O3S) contains deuterium isotope labeling, a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), N-(Acetyl-d3)-S-[4-(2-pyridinyl)benzyl]-L-cysteine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H15D3N2O3S |
| Molecular Weight | 333.42 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 2-Fluoro-N-(tetrahydro-2H-pyran-4-yl)-N-(2-(thiophen-2-yl)ethyl)benzamide (CAS 1787915-78-9)
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- 1-(Tert-butoxycarbonyl)-4-(2-methylbenzyl)piperidine-4-carboxylic acid (CAS 177990-35-1)
- tert-Butyl ((1S,2R)-2-(4-((tetrahydro-2H-pyran-2-yl)oxy)phenyl)cyclopropyl)carbamate (CAS 1946017-76-0)
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- Daporinad (CAS 201034-75-5)
- Semaglutide impurity 73 (CAS CATO-C4X-222673)
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