(R)-2-Amino-3-((2-sulfoethyl)disulfanyl)propanoic acid CAS 77698-46-5
| CAS No. | 77698-46-5 |
| Molecular Formula | C5H11NO5S3 |
| Molecular Weight | 261.34 g/mol |
| 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.
(R)-2-Amino-3-((2-sulfoethyl)disulfanyl)propanoic acid (CAS 77698-46-5) is a high-purity analytical reference standard with the molecular formula C5H11NO5S3 and a molecular weight of 261.34 g/mol.
Based on its molecular formula C5H11NO5S3, (R)-2-Amino-3-((2-sulfoethyl)disulfanyl)propanoic acid contains a carbohydrate-derived structure, an amide group, a sulfone group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 261.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C5H11NO5S3 |
| Molecular Weight | 261.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 3 |
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