3-Ethynyl-2-fluorobenzonitrile CAS 2043403-57-0
| CAS No. | 2043403-57-0 |
| Molecular Formula | C9H4FN |
| Molecular Weight | 145.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Ethynyl-2-fluorobenzonitrile (C9H4FN) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
3-Ethynyl-2-fluorobenzonitrile (CAS 2043403-57-0) is a high-purity analytical reference standard with the molecular formula C9H4FN and a molecular weight of 145.13 g/mol.
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), 3-Ethynyl-2-fluorobenzonitrile 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 | C9H4FN |
| Molecular Weight | 145.13 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ethynyl Standards
- 5-Ethynyl-2-fluorobenzonitrile (CAS 1093306-86-5)
- 2-Ethynyl-4-fluorobenzonitrile (CAS 1208076-36-1)
- 2-Ethynyl-6-fluorobenzonitrile (CAS 1233509-91-5)
- 3-Ethynyl-4-fluorobenzonitrile (CAS 133960-64-2)
- 2-Ethynyl-5-fluorobenzonitrile (CAS 1378823-86-9)
- 4-Ethynyl-3-fluorobenzonitrile (CAS 1581281-30-2)
- 4-Ethynyl-2-fluorobenzonitrile (CAS 167858-57-3)
- 2-Ethynyl-3-fluorobenzonitrile (CAS 1848959-59-0)
Recommended Standards
- 3-(4-Fluorophenyl)prop-2-ynenitrile (CAS 575433-43-1)
- 3-Ethynyl-5-fluorobenzonitrile (CAS 872122-56-0)
- 2-(methoxycarbonyl)butanoic acid (CAS 75970-22-8)
- 4-Methoxy-2-methyl-4-oxobutanoic Acid (CAS 23268-03-3)
- 852043-37-9 08:0 PI(4,5)P2 (CAS 852043-37-9)
- (R)-1-Amino-1-[4-(trifluoromethyl)phenyl]propane (CAS 439811-20-8)
- N-Formyl Benzocaine (CAS 5422-63-9)
- (E)-1-Methoxy-2-(2-nitroprop-1-en-1-yl)benzene (CAS 58645-50-4)
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- N-benzylisochromane-1-carboxamide (CAS 889953-33-7)
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