| CAS No. | 60725-23-7 |
| Molecular Formula | C5H6N2O2S3 |
| Molecular Weight | 222.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
2-((5-Mercapto-1,3,4-thiadiazol-2-yl)thio)propanoic acid (CAS 60725-23-7), molecular formula C5H6N2O2S3 and molecular weight 222.31 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 2-((5-Mercapto-1,3,4-thiadiazol-2-yl)thio)propanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 222.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 2-((5-Mercapto-1,3,4-thiadiazol-2-yl)thio)propanoic acid 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 | C5H6N2O2S3 |
| Molecular Weight | 222.31 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |