3-Methyl-1,2,4-thiadiazole-5-carbohydrazide CAS 1375066-73-1
| CAS No. | 1375066-73-1 |
| Molecular Formula | C4H6N4OS |
| Molecular Weight | 158.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Methyl-1,2,4-thiadiazole-5-carbohydrazide 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.
3-Methyl-1,2,4-thiadiazole-5-carbohydrazide (CAS 1375066-73-1) is a high-purity analytical reference standard with the molecular formula C4H6N4OS and a molecular weight of 158.18 g/mol.
Structurally, 3-Methyl-1,2,4-thiadiazole-5-carbohydrazide (C4H6N4OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 158.18 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.
Physical & Chemical Properties
| Molecular Formula | C4H6N4OS |
| Molecular Weight | 158.18 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Ethyl 1,3,4-Thiadiazole-2-carboxylate (CAS 1378819-08-9)
- 4-Ethyl-1,2,5-thiadiazole-3-carboxylic acid (CAS 1538685-60-7)
- 4-Ethyl-1,2,3-thiadiazole-5-carboxylic acid (CAS 183302-40-1)
- 4-Methyl-1,2,3-thiadiazole-5-carbohydrazide (CAS 75423-15-3)
- 5-Methyl-1,2,3-thiadiazole-4-carbohydrazide (CAS 4137-63-7)
- Ethyl 1,2,3-thiadiazole-4-carboxylate (CAS 3989-36-4)
- Ethyl 1,2,3-thiadiazole-5-carboxylate (CAS 4100-14-5)
- Ethyl 1,2,4-Thiadiazole-5-carboxylate (CAS 859536-28-0)
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