| CAS No. | 1268691-68-4 |
| Molecular Formula | C13H19NO4S3 |
| Molecular Weight | 349.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The molecular framework of Propanoic acid, 2-[[(butylthio)thioxomethyl]thio]-2-methyl-, 2,5-dioxo-1-pyrrolidinyl ester (C13H19NO4S3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone 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.
Propanoic acid, 2-[[(butylthio)thioxomethyl]thio]-2-methyl-, 2,5-dioxo-1-pyrrolidinyl ester (CAS 1268691-68-4) is a high-purity analytical reference standard with the molecular formula C13H19NO4S3 and a molecular weight of 349.49 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.
CATO manufactures Propanoic acid, 2-[[(butylthio)thioxomethyl]thio]-2-methyl-, 2,5-dioxo-1-pyrrolidinyl ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C13H19NO4S3 |
| Molecular Weight | 349.49 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 3 |