5-Bromothiazole-2(3H)-thione CAS 63329-71-5
| CAS No. | 63329-71-5 |
| Molecular Formula | C3H2BrNS2 |
| Molecular Weight | 196.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromothiazole-2(3H)-thione is closely related to a nitrile group, sulfur-containing functionality, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Bromothiazole-2(3H)-thione (CAS 63329-71-5) is a high-purity analytical reference standard with the molecular formula C3H2BrNS2 and a molecular weight of 196.09 g/mol.
Owing to a nitrile group, sulfur-containing functionality, bromine substitution, 5-Bromothiazole-2(3H)-thione is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 196.09 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 5-Bromothiazole-2(3H)-thione 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 | C3H2BrNS2 |
| Molecular Weight | 196.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Bromothiazole Standards
- 4-Bromothiazole-5-methanol (CAS 262444-15-5)
- 4-Bromothiazole-5-carbaldehyde (CAS 1244948-92-2)
- 4-Bromothiazole-2-carboxaldehyde (CAS 167366-05-4)
- 5-Bromothiazole-2-carbaldehyde, 97% (CAS 933752-44-4)
- 5-Bromothiazole-4-carbaldehyde (CAS 934346-19-7)
- 5-Bromothiazole-4-carbonitrile (CAS 1257072-06-2)
- 4-Bromothiazole-5-carbonitrile (CAS 1367964-98-4)
- 2-Bromothiazole-5-carbonitrile (CAS 440100-94-7)
Recommended Standards
- 3,3,4,5,5,5-Hexafluoro-2-pentanol (CAS 2711-81-1)
- rel-2-((1R,2R)-2-Ethylcyclopropyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2375816-12-7)
- 3,3,3-Trifluoro-2-methyl-2-(trifluoromethyl)propan-1-ol (CAS 2927-17-5)
- 2-(1,2-dimethyl-1-propen-1-yl)-4,4,5,5-tetramethyl-1,3,2-Dioxaborolane 219488-99-0 (CAS 219488-99-0)
- Ethyl 4-hydroxy-2-(thiophen-2-yl)thiazole-5-carboxylate (CAS 924869-00-1)
- 2-Chloro-N-(2-(dimethylamino)-5-(piperidin-1-ylsulfonyl)phenyl)acetamide (CAS 923805-28-1)
- tert-butyl (3R)-3-(bromomethyl)pyrrolidine-1-carboxylate (CAS 1067230-65-2)
- N-(5-((2-((2-Fluorophenyl)amino)-2-oxoethyl)thio)-1,3,4-thiadiazol-2-yl)benzamide (CAS 392298-10-1)
- 2-(1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-indol-3-yl)-2-oxoacetamide (CAS 338409-90-8)
- 5-Bromo-2-(2-fluorophenyl)-2H-1,2,3-triazole-4-carboxylic acid (CAS 1779120-07-8)
- 3-Methyl-1,2,3,4-tetrahydrobenzo[4,5]imidazo[1,2-a]pyridine (CAS 134856-46-5)
- 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-morpholinophenyl)propanoic acid (CAS 1379882-11-7)
- 4-Chloro-2-(difluoromethyl)-3-fluorophenol (CAS 2092380-93-1)
- Hippocampal Cholinergic Neurostimulating Peptide (CAS 140158-49-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com