Chemical Structure Search

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To use these special symbols, right-click on the X-button, type the symbol into the box that appears, and close the box:
A: any atom except H
Q: any atom except H and C
X: any halogen atom
H: explicit hydrogen
substructure search exact search
strict atom/bond type comparison
check configuration (E/Z and R/S)
 

JME Editor courtesy of Peter Ertl, Novartis
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chemmol

Search Compounds by cas number, chemical name, catalog number, etc