5-(1-chloroethyl)-3-thien-2-yl-1,2,4-oxadiazole CAS 1039967-49-1
| CAS No. | 1039967-49-1 |
| Molecular Formula | C8H7ClN2OS |
| Molecular Weight | 214.67 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.
5-(1-chloroethyl)-3-thien-2-yl-1,2,4-oxadiazole (CAS 1039967-49-1), molecular formula C8H7ClN2OS and molecular weight 214.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H7ClN2OS, 5-(1-chloroethyl)-3-thien-2-yl-1,2,4-oxadiazole contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.67 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), 5-(1-chloroethyl)-3-thien-2-yl-1,2,4-oxadiazole 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 | C8H7ClN2OS |
| Molecular Weight | 214.67 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related chloroethyl Standards
- 2-(1-chloroethyl)-5-thien-2-yl-1,3,4-oxadiazole (CAS 854357-49-6)
- Benzyl 1-chloroethyl carbonate (CAS 99464-81-0)
- 5-(1-chloroethyl)-1-cyclohexyl-1H-1,2,3,4-tetrazole (CAS 858483-98-4)
- (3-(2-Chloroethyl)phenyl)methanol (CAS 73004-96-3)
- 2-Chloroethyl (E)-(2-(furan-2-yl)vinyl)carbamate (CAS 338399-71-6)
- Benzyl (2-chloroethyl)carbamate (CAS 129414-33-1)
- N-(2-Chloroethyl)-4-methoxybenzamide (CAS 15257-92-8)
- N-(2-Chloroethyl)-3-methoxybenzamide (CAS 161194-75-8)
Recommended Standards
- 7-(Chloromethyl)-3-methyl-5H-thiazolo[3,2-a]pyrimidin-5-one (CAS 100003-81-4)
- 2-methoxypyrimidine-5-sulfonyl chloride (CAS 1108654-53-0)
- 898766-30-8 1-(4-Chloro-3-fluorophenyl)-2,2-dimethylpropan-1-one DTXSID90642473 (CAS 898766-30-8)
- 1-(2-Chloro-6-fluorophenyl)piperazine (CAS 1121610-03-4)
- 1,4-Bis[3-(2-pyridyldithio)propionamido]butane (CAS 141647-62-3)
- Ethyl 2-(methylthio)benzoate (CAS 1442-00-8)
- 2,3-Dihydropyrazolo[5,1-b]thiazole-6-carboxylic acid (CAS 1286754-48-0)
- 8-Methoxy-2-oxo-N-(pyridin-2-yl)-2H-chromene-3-carboxamide (CAS 446270-03-7)
- 2,4,5-Trichlorophenyl isothiocyanate (CAS 23165-46-0)
- 4-(Morpholinomethyl)-3-phenylisoxazol-5(4H)-one (CAS 39214-84-1)
- Diallyldibutyltin (CAS 15336-98-8)
- Tert-butyl (3-(trifluoromethyl)pyrrolidin-3-yl)carbamate (CAS 186203-13-4)
- Fotretamine (CAS 37132-72-2)
- (D-Trp32)-Neuropeptide Y (porcine) trifluoroacetate salt (CAS 153549-78-1)
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