4-Chloro-N-(1,3,4-thiadiazol-2-yl)butanamide CAS 544700-56-3
| CAS No. | 544700-56-3 |
| Molecular Formula | C6H8ClN3OS |
| Molecular Weight | 205.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Chloro-N-(1,3,4-thiadiazol-2-yl)butanamide (CAS 544700-56-3), molecular formula C6H8ClN3OS and molecular weight 205.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H8ClN3OS, 4-Chloro-N-(1,3,4-thiadiazol-2-yl)butanamide contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 205.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 4-Chloro-N-(1,3,4-thiadiazol-2-yl)butanamide 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 | C6H8ClN3OS |
| Molecular Weight | 205.67 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 1-(4-Chloro-1,2,5-thiadiazol-3-yl)pyrrolidin-3-ol (CAS 1343502-66-8)
- 2-Chloro-N-(5-ethyl-1,3,4-thiadiazol-2-yl)acetamide (CAS 21521-90-4)
- 2-Chloro-N-(5-methyl-1,3,4-thiadiazol-2-yl)propanamide (CAS 391863-94-8)
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- 4-(Chloromethyl)-2-(2-fluorophenyl)-5-methyl-1,3-oxazole (CAS 671215-76-2)
- Upadacitinib Impurity 160 (CAS CATO-C4X-2405160)
- [1,1'-biphenyl]-2,3-diol (CAS 1133-63-7)
- Ethyl 5-butyl-4,5-dihydroisoxazole-3-carboxylate (CAS 104048-57-9)
- N,N'-((1S,4R)-2-(trimethylsilyl)cyclohex-2-ene-1,4-diyl)dibenzamide (CAS 2053651-98-0)
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