5-methyl-1,3,4-thiadiazole-2-sulfonamide CAS 66464-90-2
| CAS No. | 66464-90-2 |
| Molecular Formula | C3H5N3O2S2 |
| Molecular Weight | 179.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C3H5N3O2S2, 5-methyl-1,3,4-thiadiazole-2-sulfonamide contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 179.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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-1,3,4-thiadiazole-2-sulfonamide (CAS 66464-90-2), a certified reference material (molecular formula C3H5N3O2S2, MW 179.22 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.
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.
Physical & Chemical Properties
| Molecular Formula | C3H5N3O2S2 |
| Molecular Weight | 179.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related methyl Standards
- 4-Ethyl-[1,2,3]thiadiazole-5-carbonyl chloride 889939-72-4 (CAS 889939-72-4)
- 5-methyl-1,3,4-thiadiazole-2-sulfonyl fluoride (CAS 1909313-52-5)
- 1,2,5-Thiadiazole-3-carboxylic acid, 4-(1-propyn-1-yl)-, methyl ester (CAS 2618882-53-2)
- 1,3,4-THIADIAZOLE, 2-BROMO-5-METHYL- 2-BROMO-5-METHYL-1,3,4-THIADIAZOLE 2-METHYL-5-BROMO-1,3,4-THIADIAZOLE 5-BROMO-2-METHYL-1,3,4-THIADIAZOLE 54044-79-0 BC004035 (CAS 54044-79-0)
- 1,3,4-Thiadiazole-2,5-dicarboxylic acid (CAS 188935-31-1)
- 1,2,5-Thiadiazole-3,4-dicarboxylic acid (CAS 3762-94-5)
- 1,2,4-Thiadiazole-3-sulfonyl chloride (CAS 2254-65-1)
- 1,3,4-Thiadiazole-2-sulfonyl chloride (CAS 362521-36-6)
Recommended Standards
- 5-Isobutylpicolinic acid (CAS 49751-49-7)
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- 6-(Piperazin-1-yl)pyridin-3-ol (CAS 287114-37-8)
- Methyl 2,3-dihydro-1H-imidazo[1,2-b]pyrazole-6-carboxylate (CAS 2092487-12-0)
- 3-(4-Fluorophenyl)-4-(p-tolyl)-5-((p-tolyloxy)methyl)-4H-1,2,4-triazole (CAS 141079-02-9)
- 4-Bromo-3-(methoxymethoxy)phenol (CAS 171354-06-6)
- Methyl 3-(4-hydroxyphenyl)-3-(1-oxo-2,3-dihydro-1H-isoindol-2-yl)propanoate (CAS 478249-85-3)
- 2-Isopropoxy-3-(trifluoromethyl)pyridine-5-boronic acid (CAS 2377611-53-3)
- Tetrabutylammoniumsuccinimide (CAS 74830-30-1)
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- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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