In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Gold-patterned microarray chips for ultrasensitive surface-enhanced Raman scattering detection of ultratrace samples, published in 2019, which mentions a compound: 4556-23-4, Name is Pyridine-4-thiol, Molecular C5H5NS, Electric Literature of C5H5NS.
This paper reports the fabrication of gold-patterned microarray chips for fast and ultrasensitive surface enhanced Raman scattering (SERS) detection of trace samples. By micro-nano machining based on electron-beam lithog., magnetron sputtering, and chem. modification, gold-patterned microarray chips with hydrophilic and hydrophobic periodic structures are fabricated, and a polyethylene glycol (PEG) layer is coated on the surface of the gold well, making the chips long-term stable. The hydrophilic surface of each gold well is surrounded by a hydrophobic layer, which makes the ultratrace sample amount for SERS measurement only 0.3μl. In the detection of malachite green (MG), 4-mercaptopyridine (4-MPY), rhodamine 6G (R6G), and melamine, great enhanced SERS signals with the detection limit reaching nM level can be achieved due to the enrichment effect of the periodic structures and the hot-spots generated between the sandwich structure built on the gold wells. Such gold-patterned microarray chip is promising in fast and ultrasensitive SERS detection of various chem. and biol. species with trace amount
《Gold-patterned microarray chips for ultrasensitive surface-enhanced Raman scattering detection of ultratrace samples》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Pyridine-4-thiol)Electric Literature of C5H5NS.
Reference:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts