Note: This search is by molecular weight based on single (most-abundant) isotope atomic masses. These weights may vary significantly from molecular weights based on average atomic masses. The molecular weights reported elsewhere in this site are based on average atomic masses.
Please follow the steps below to conduct your search (Help):
You may search for species based on molecular weight values in two ways:
A chemical formula may be entered to restrict the search to species which match the formula. The manner in which the formula is interpreted is controlled by two checkboxes below the formula entry box:
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