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webbook.nist.gov/chemistry/form-ser.html

Press here to search: Chemical Formula Search Help. Rules for chemical formulas (Back to search). Enter a sequence of element symbols followed by numbers ...

www.endmemo.com/chem/chemsearch.php

Chemical Compounds Lookup by Name or Formula.

pubchem.ncbi.nlm.nih.gov/search/search.cgi

PubChem Structure Search. ... Search By: Name/ Text, Identity/ Similarity, Substructure/ Superstructure, Molecular Formula, 3D Conformer, Saved Search ...

www.organic-chemistry.org/chemicals/search.htm

Organic Chemistry Portal · Chemicals >> Quick Search, Structure Search. Chemical Search Engine. Enter a name, molecular formula or cas number: ...

www.chemspider.com/Search.aspx

Search by Systematic name, Synonym, Trade name, Registry number, SMILES or InChI.

www.organic-chemistry.org/chemicals/structuresearch.htm

Please click here to perform a new search: New Chemical Search. Search ... Find chemicals and suppliers by name, molecular formula or cas number: ...

www.sigmaaldrich.com/catalog/search/substructure/SubstructureSearchPage

Click Here to access our previous drawing tool. (Available for a limited time). Search Type. Substructure, Identity. Exact, Fragment. Similarity %. Search Options.

www.lenntech.com/periodic/symbol/symbol.htm

Chemical elements listed by symbol. The elements of the periodic table sorted by symbol. click on any element's name for further chemical properties, ...

docs.chemaxon.com/display/docs/Sophisticated+chemical+formula+search

Feb 19, 2015 ... JChem Base offers sophisticated chemical formula search for easier usage and better performance. Besides simple chemical formula search, ...

www.cas.org/training/stneasytips/subinforformula.html

Introduction. This section describes how to use the Advanced Search option in STN Easy to find chemical substance information using a chemical formula.