3-Chloro-4-iodo-1,2,5-thiadiazole CAS 537706-14-2
| CAS No. | 537706-14-2 |
| Molecular Formula | C2ClIN2S |
| Molecular Weight | 246.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-4-iodo-1,2,5-thiadiazole (CAS 537706-14-2) is a high-purity analytical reference standard with the molecular formula C2ClIN2S and a molecular weight of 246.46 g/mol.
Structurally, 3-Chloro-4-iodo-1,2,5-thiadiazole (C2ClIN2S) contains a nitrile group, sulfur-containing functionality, chlorine/iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 246.46 g/mol, it falls into the medium-molecular-weight range. 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).
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-Chloro-4-iodo-1,2,5-thiadiazole 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 | C2ClIN2S |
| Molecular Weight | 246.46 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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