5-(Thiophen-2-yl)-1,3,4-thiadiazol-2-amine CAS 4683-00-5
| CAS No. | 4683-00-5 |
| Molecular Formula | C6H5N3S2 |
| Molecular Weight | 183.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(Thiophen-2-yl)-1,3,4-thiadiazol-2-amine (CAS 4683-00-5), molecular formula C6H5N3S2 and molecular weight 183.25 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, an aromatic ring system, 5-(Thiophen-2-yl)-1,3,4-thiadiazol-2-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 183.25 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).
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-(Thiophen-2-yl)-1,3,4-thiadiazol-2-amine 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 | C6H5N3S2 |
| Molecular Weight | 183.25 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Thiophen Standards
- 3-(Thiophen-3-yl)-1,2,4-thiadiazol-5-amine (CAS 1153982-21-8)
- 3-(Thiophen-2-yl)-1,2,4-thiadiazol-5-amine (CAS 138613-72-6)
- 5-(Thiophen-2-yl)-4H-1,2,4-triazole-3-thiol (CAS 68744-68-3)
- N-(thiophen-3-ylmethyl)isobutyramide (CAS 1058491-60-3)
- 2-methyl-6-(thiophen-3-yl)morpholine (CAS 1249332-11-3)
- 4-(Thiophen-2-yl)oxan-4-amine (CAS 1249521-83-2)
- N-(2-(thiophen-3-yl)ethyl)oxetan-3-amine (CAS 1342476-59-8)
- (1-(Thiophen-2-ylmethyl)azetidin-3-yl)methanol (CAS 1484133-67-6)
Recommended Standards
- 4-Phenethylpyridine (CAS 2116-64-5)
- 4-Methyldiphenylamine (CAS 620-84-8)
- 5-amino-3,3-dimethyl-isobenzofuran-1-one (CAS 217196-57-1)
- 4-methyl-4-(2-methylpropyl)piperidine-2,6-dione (CAS 50849-39-3)
- 2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]acetonitrile (CAS 157764-10-8)
- 3-Bromo-5-chloro-2-fluorobenzenethiol (CAS 1823495-98-2)
- GHRP-6 (2-6) free acid TFA salt (CAS CATO-CPTD788547)
- 2-Morpholino-1,1-diphenylethan-1-ol (CAS 13150-37-3)
- (2R,3R,4R,5R)-2-(4-Benzamido-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-((tert-butyldimethylsilyl)oxy)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphorami (CAS 2243079-18-5)
- 2-(Aminomethyl)-5-cyano-3-(difluoromethyl)-6-methoxypyridine (CAS 1805286-56-9)
- 2-(2-Oxo-2-(pyrrolidin-1-yl)ethoxy)benzamide (CAS 90074-83-2)
- 3-(Furan-3-yl)-N-((2-methoxyadamantan-2-yl)methyl)acrylamide (CAS 1798401-52-1)
- (S)-2-amino-3-(1H-imidazol-4-yl)propanehydrazide (CAS CATO-C4X-182137)
- Neuropeptide Y (2-36) (human, rat) trifluoroacetate salt (CAS 123139-39-9)
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