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Structure of 693-98-1
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Graphene quantum dots (GQDs), sheets of few-layered graphene and lateral dimensions smaller than 100 nm, possess strong quantum confinement and edge effects. Thus, they possess unique physical properties such as strong photoluminescence, which can be tailored for specific applications by controlling their size, shape, defects, and functionality. In contrast to classic QDs, such as metal or silicon quantum dots, GQDs are biocompatible, photo-stable, and inherit superior thermal, electrical, and mechanical properties from the graphene. These features can greatly contribute to various state-of-the-art applications:Optical brighteners.Taggants for security application.Bio-imaging markers.Fluorescent polymers.Antibacterial, antibiofouling, disinfection systems.Heavy metals, humidity and pressure sensors.Batteries.Flash memory devices.Photovoltaic devices.Light-emitting diodes.
2-Methylimidazole serves as a versatile building block in synthetic organic chemistry, particularly valued for its role as a ligand in transition metal catalysis and as a precursor to bioactive heterocycles. Its moderate basicity and stability under standard reaction conditions enable efficient functionalization and facilitate coupling reactions. The molecule functions effectively in coordination chemistry and offers reliable performance in the synthesis of imidazole-based scaffolds relevant to pharmaceutical intermediates and catalyst design.
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GHS Pictogram :
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GHS No : GHS05,GHS07,GHS08
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Signal Word : Danger
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UN#: 3259
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Class : 8
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Packing Group : Ⅱ
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Hazard Statements : H302-H314-H351-H360
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Precautionary Statements : P260-P264-P270-P280-P301+P330+P331-P304+P340-P330-P363-P405-P501
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Lot numbers can be found on the outside label of a product: