81202-04-2 L-Methionine-(carboxy-13C,methyl-d3) L-Methionine-1-13C SILAC Amino Acid CAS 81202-04-2
| CAS No. | 81202-04-2 |
| Molecular Formula | C4[13C]H11NO2S |
| Molecular Weight | 150.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 81202-04-2 L-Methionine-(carboxy-13C,methyl-d3) L-Methionine-1-13C SILAC Amino Acid (C4[13C]H11NO2S) is characterized by an amide group, a sulfone group, a carboxylic acid 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.
81202-04-2 L-Methionine-(carboxy-13C,methyl-d3) L-Methionine-1-13C SILAC Amino Acid (CAS 81202-04-2) is a high-purity analytical reference standard with the molecular formula C4[13C]H11NO2S and a molecular weight of 150.20 g/mol.
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), 81202-04-2 L-Methionine-(carboxy-13C,methyl-d3) L-Methionine-1-13C SILAC Amino Acid 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 | C4[13C]H11NO2S |
| Molecular Weight | 150.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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