5-(4-Bromothiophen-2-yl)-4-ethyl-4h-1,2,4-triazole-3-thiol CAS 828276-13-7
| CAS No. | 828276-13-7 |
| Molecular Formula | C8H8BrN3S2 |
| Molecular Weight | 290.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H8BrN3S2, 5-(4-Bromothiophen-2-yl)-4-ethyl-4h-1,2,4-triazole-3-thiol contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 290.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5-(4-Bromothiophen-2-yl)-4-ethyl-4h-1,2,4-triazole-3-thiol (CAS 828276-13-7), molecular formula C8H8BrN3S2 and molecular weight 290.20 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C8H8BrN3S2 |
| Molecular Weight | 290.20 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Bromothiophen Standards
- (5-Bromothiophen-3-yl)(4-hydroxypiperidin-1-yl)methanone (CAS 1156669-66-7)
- 1-((4-Bromothiophen-2-yl)methyl)pyrrolidine-3-carboxylic acid (CAS 1344279-23-7)
- 2-(5-Bromothiophen-2-yl)quinoline (CAS 81216-93-5)
- 1-(5-Bromothiophen-2-yl)-N-((tetrahydrofuran-2-yl)methyl)ethan-1-amine (CAS 1179639-71-4)
- 2-(((5-Bromothiophen-2-yl)methyl)amino)cyclohexan-1-ol (CAS 1183446-78-7)
- (1-((4-Bromothiophen-2-yl)methyl)piperidin-4-yl)methanol (CAS 1247407-17-5)
- 2-(((3-Bromothiophen-2-yl)methyl)amino)cyclohexan-1-ol (CAS 1247639-08-2)
- (1-((5-Bromothiophen-2-yl)methyl)piperidin-4-yl)methanol (CAS 1249753-68-1)
Recommended Standards
- 4,4'-Bis(trifluoromethyl)-1,1'-biphenyl (CAS 581-80-6)
- 5-Sulfo-1,2,4-benzenetricarboxylic acid (CAS 51307-74-5)
- 3,3'-Bis(trifluoromethyl)-1,1'-biphenyl (CAS 580-82-5)
- ethyl 4-bromoquinoline-6-carboxylate (CAS 958332-97-3)
- 2-Methoxy-4-(trifluoromethyl)pyridine (CAS 219715-34-1)
- 3-((3-Amino-2,2-dimethylpropyl)amino)benzo[d]isothiazole 1,1-dioxide (CAS 345972-21-6)
- 2-(((4-Methyl-4H-1,2,4-triazol-3-yl)thio)methyl)-5-(2-oxo-2-(piperidin-1-yl)ethoxy)-4H-pyran-4-one (CAS 899745-15-4)
- 3-Amino-5-chloro-2-methoxybenzoic acid (CAS 779303-21-8)
- 1-(3-((4-Bromophenyl)thio)propyl)-3-(pyrimidin-2-yl)urea (CAS 899740-65-9)
- 6-Methoxy-2-methylpyridine-3-sulfonyl chloride (CAS 1700543-27-6)
- cis-tert-Butyl 3-(aminomethyl)-4-hydroxypyrrolidine-1-carboxylate (CAS 872714-78-8)
- 2-(1-methyl-1H-pyrazol-5-yl)morpholine (CAS 1526764-28-2)
- Ethyl 5-methoxy-1-(pyrimidin-2-yl)-1H-pyrazole-3-carboxylate (CAS 1427021-22-4)
- [y-Glu3]-Semaglutide Impurity 135 (CAS CATO-C4X-2226135)
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