5-Methyl-1,2,3-thiadiazole-4-carbohydrazide CAS 4137-63-7
| CAS No. | 4137-63-7 |
| Molecular Formula | C4H6N4OS |
| Molecular Weight | 158.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 5-Methyl-1,2,3-thiadiazole-4-carbohydrazide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 158.18 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).
CATO supplies 5-Methyl-1,2,3-thiadiazole-4-carbohydrazide (CAS 4137-63-7), a certified reference material (molecular formula C4H6N4OS, MW 158.18 g/mol) for analytical method development and quality control.
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), 5-Methyl-1,2,3-thiadiazole-4-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.
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.) | 1958 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 3-Methyl-1,2,4-thiadiazole-5-carbohydrazide (CAS 1375066-73-1)
- 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)
- 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)
Recommended Standards
- 5-Methoxy-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 6939-11-3)
- 5-Thioxohexahydroimidazo[4,5-d]imidazol-2(1H)-one (CAS 75371-25-4)
- 5-Methoxy-2-thiophenecarboxylic Acid (CAS 29212-22-4)
- 6-(Hydroxymethyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 31555-11-0)
- 2,2′-(1,3-Phenylene)bis[benzoxazole] (CAS 59049-84-2)
- (S)-2-Chloro-1-(3-((cyclopropylmethyl)amino)piperidin-1-yl)ethanone (CAS 1353993-14-2)
- tert-Butyl (5-oxopentyl)carbamate (CAS 94136-78-4)
- 4-(Hydroxymethyl)-4-methyl-2-phenyloxazol-5(4H)-one (CAS 474651-48-4)
- Guamecycline dihydrochloride (CAS 13040-98-7)
- (2R,3S,4S,5R)-2,5-Bis(hydroxymethyl)-oxolane-2,3,4-triol (CAS 470-23-5)
- 2-(Benzyloxy)-4-fluoro-5-methylphenylboronic acid (CAS 2096331-49-4)
- Lurbinectedin Impurity 21 (CAS 497871-67-7)
- Isoproterenol (CAS 7683-59-2)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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