DL-2-Hydroxy-4-(methylthio)butanoic Acid-13C4DISCONTINUED, see H555660 CAS 1215556-82-3
| CAS No. | 1215556-82-3 |
| Molecular Formula | C[13C]4H10O3S |
| Molecular Weight | 154.17 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 DL-2-Hydroxy-4-(methylthio)butanoic Acid-13C4DISCONTINUED, see H555660.
DL-2-Hydroxy-4-(methylthio)butanoic Acid-13C4DISCONTINUED, see H555660 (CAS 1215556-82-3), molecular formula C[13C]4H10O3S and molecular weight 154.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, DL-2-Hydroxy-4-(methylthio)butanoic Acid-13C4DISCONTINUED, see H555660 (C[13C]4H10O3S) contains a sulfone group, a carboxylic acid group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of -2.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 154.17 g/mol, it falls into the medium-molecular-weight range.
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 | C[13C]4H10O3S |
| Molecular Weight | 154.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -2.0 |
| CAS Registry Year (est.) | 1990 |
| Sulfur Atoms | 1 |
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