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Enter a HRMS weight in the box, and click on Find Formula. The search can be
interrupted part way through, and the elements which have been fully investigated will be listed.
The elements are searched in order of probable occurence, beginning the C, H, O then N.
If chemical check is highlighted, then the search will exclude molecules
which should not exist as single molecules. For example, C2H6
is ethane, and is fully saturated. C2H10 cannot exist, therefore.
The test is approximate, and is likely to allow some improbable molecules.
The data for atomic weights and isotope distributions can be examined using
the periodic table applet.
August 2006: modified to allow for the weight of an electron. All HRMS weights now assume ions
have a single positive charge
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