• Source: Precursor (chemistry)

In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound.
In biochemistry, the term "precursor" often refers more specifically to a chemical compound preceding another in a metabolic pathway, such as a protein precursor.




Illicit drug precursors



In 1988, the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances introduced detailed provisions and requirements relating the control of precursors used to produce drugs of abuse.
In Europe the Regulation (EC) No. 273/2004 of the European Parliament and of the Council on drug precursors was adopted on 11 February 2004. (European law on drug precursors)




Illicit explosives precursors


On January 15, 2013, the Regulation (EU) No. 98/2013 of the European Parliament and of the Council on the marketing and use of explosives precursors was adopted.
The Regulation harmonises rules across Europe on the making available, introduction, possession and use, of certain substances or mixtures that could be misused for the illicit manufacture of explosives.




Detection


A portable, advanced sensor based on infrared spectroscopy in a hollow fiber matched to a silicon-micromachined fast gas chromatography column can analyze illegal stimulants and precursors with nanogram-level sensitivity.
Raman spectroscopy has been successfully tested to detect explosives and their precursors.
Technologies able to detect precursors in the environment could contribute to an early location of sites where illegal substances (both explosives and drugs of abuse) are produced.




See also


Binary chemical weapon
Chemical synthesis
DEA list of chemicals
Derivative (chemistry)
Educt, a reagent or reactant
Metabolism#Anabolism
Monoamine precursor
Prodrug
Protein precursor




References

Kata Kunci Pencarian:

• Nonlogam
• Tembaga(II) sulfat
• Fitosterol
• Isopentenil pirofosfat
• Unsur periode 2
• Bawang putih
• Asam tartrat
• Dietil eter
• Caveolin 1
• Fluorin azida
• Precursor (chemistry)
• Derivative (chemistry)
• Precursor
• Prodrug
• Wolf Prize in Chemistry
• Amyloid-beta precursor protein
• Alcohol (chemistry)
• Organic chemistry
• Clandestine chemistry
• Hydrogen fluoride