5-(1,2,3-Thiadiazol-5-yl)-1,3,4-oxadiazole-2(3H)-thione CAS 64369-34-2
| CAS No. | 64369-34-2 |
| Molecular Formula | C4H2N4OS2 |
| Molecular Weight | 186.21 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.
5-(1,2,3-Thiadiazol-5-yl)-1,3,4-oxadiazole-2(3H)-thione (CAS 64369-34-2) is a high-purity analytical reference standard with the molecular formula C4H2N4OS2 and a molecular weight of 186.21 g/mol.
Based on its molecular formula C4H2N4OS2, 5-(1,2,3-Thiadiazol-5-yl)-1,3,4-oxadiazole-2(3H)-thione contains 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 186.21 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H2N4OS2 |
| Molecular Weight | 186.21 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 |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
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- 4-((4-(s-Hydroxysulfonimidoyl)phenyl)carbamoyl)pyridine 1-oxide (CAS 923138-66-3)
- 2-(4-Nitro-5-(thiophen-2-yl)-1H-pyrazol-1-yl)ethanol (CAS 1708037-81-3)
- 3-Bromo-4-methoxyphenylethylamine (CAS 159465-27-7)
- Oxalic Acid Dihydrate (CAS 6153-56-6)
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- Eltrombopag Impurity 29 (CAS CATO-C4X-119829)
- N-Methyl-2-((5-nitrofuran-2-yl)methylene)hydrazinecarboxamide (CAS 5407-73-8)
- Serpent Peptide (CAS 823202-99-9)
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