3-Ethyl-5-(3-methyl-5-(methylthio)-1,3,4-thiadiazol-2(3H)-ylidene)-2-thioxothiazolidin-4-one CAS 3891-77-8
| CAS No. | 3891-77-8 |
| Molecular Formula | C9H11N3OS4 |
| Molecular Weight | 305.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H11N3OS4, 3-Ethyl-5-(3-methyl-5-(methylthio)-1,3,4-thiadiazol-2(3H)-ylidene)-2-thioxothiazolidin-4-one contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 305.46 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.
3-Ethyl-5-(3-methyl-5-(methylthio)-1,3,4-thiadiazol-2(3H)-ylidene)-2-thioxothiazolidin-4-one (CAS 3891-77-8) is a high-purity analytical reference standard with the molecular formula C9H11N3OS4 and a molecular weight of 305.46 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Ethyl-5-(3-methyl-5-(methylthio)-1,3,4-thiadiazol-2(3H)-ylidene)-2-thioxothiazolidin-4-one 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 | C9H11N3OS4 |
| Molecular Weight | 305.46 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 4 |
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