2-Ethynyl-5-fluoro-4-methylpyridine CAS 1256792-71-8
| CAS No. | 1256792-71-8 |
| Molecular Formula | C8H6FN |
| Molecular Weight | 135.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Ethynyl-5-fluoro-4-methylpyridine (CAS 1256792-71-8), a certified reference material (molecular formula C8H6FN, MW 135.14 g/mol) for analytical method development and quality control.
Structurally, 2-Ethynyl-5-fluoro-4-methylpyridine (C8H6FN) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 135.14 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 2-Ethynyl-5-fluoro-4-methylpyridine 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 | C8H6FN |
| Molecular Weight | 135.14 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ethynyl Standards
- 5-Ethynyl-2-fluoroaniline (CAS 1010422-58-8)
- 6-Ethynyl-3-fluoro-2-methylpyridine (CAS 1256792-43-4)
- 3-Ethynyl-5-fluoroaniline (CAS 1296271-79-8)
- 2-Ethynyl-3-fluoro-5-methylpyridine (CAS 1372103-91-7)
- 2-Ethynyl-5-fluoro-3-methylpyridine (CAS 1372103-93-9)
- 3-Ethynyl-5-fluoro-4-methylpyridine (CAS 1382850-26-1)
- 2-Ethynyl-3-fluoro-6-methylpyridine (CAS 1824076-35-8)
- 4-Ethynyl-2-fluoro-3-methylpyridine (CAS 1824113-32-7)
Recommended Standards
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com