2-Ethynyl-5-fluorothiophene CAS 1855889-70-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1855889-70-1 |
| Molecular Formula | C6H3FS |
| Molecular Weight | 126.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Ethynyl-5-fluorothiophene (CAS 1855889-70-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C6H3FS. Molecular weight: 126.15 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C6H3FS |
| Molecular Weight | 126.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 1-Methyl-7-oxabicyclo[4.1.0]heptan-3-one (CAS 184481-10-5)
- 1,3-Dioxolane, 4-ethynyl-2,2-dimethyl-, (R)- (9CI) 186521-82-4 (CAS 186521-82-4)
- 1-Oxaspiro[3.4]Octan-3-one (CAS 1823935-01-8)
- 1-Amino-8-nitroanthracene-9,10-dione (CAS 59471-77-1)
- (6-Amino-5-(trifluoromethyl)pyridin-3-yl)boronic acid (CAS 1189126-37-1)
- 5-(2-Hydroxybenzylidene)imidazolidine-2,4-dione (CAS 90771-20-3)
- 7-Chloro-9-(4-phenylpiperazin-1-yl)-2,3-dihydro-1H-cyclopenta[b]quinoline (CAS 40527-93-3)
- 1-(4-Bromobutoxy)-3-chlorobenzene (CAS 23529-80-8)
- 2,4,6-Trifluoro-3,5-dimethylbenzaldehyde (CAS 1951441-62-5)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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 13829788188 / jacky.chen@cato-chem.com