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Chemical formula


A chemical formula is a way of expressing information about the proportions of atoms that .... elements, including hydrogen, are ordered alphabetically. This deterministic system enables straightfor...

Chemical Formula Search


Search for Species Data by Chemical Formula ... Enter the desired chemical formula (e.g., C4H*Cl): ... Allow more atoms of elements in formula than specified.

Chemical Structure Search - PubChem


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

ChemSpider | Search and share chemistry


Free chemistry search engine which aggregates and indexes chemical structures and their associated information into a single searchable repository.



Free chemical structure search engine with millions of public domain structures from vendors worldwide.

STN Easy Quick Tips - Chemical Formula Search


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

ChemExper Chemical Directory


ChemExper is a company joining together the areas of chemistry, computer ... is a free service that allows to find a chemical by its molecular formula, IUPAC name, ... Inc. – Search 11428926 different products from 2516 chemicals suppliers.

Substructure Search - Sigma-Aldrich


Search Options. Stereo ... Help. Clear. Search ... IDRANAL, SPECTRANAL, and VOLPAC are trademarks of Honeywell Specialty Chemicals Seelze GmbH.

Sophisticated chemical formula search - ChemAxon - DOCS

docs.chemaxon.com/display/jchembase/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, ...

Compound Search: Home


Compound Search: Free Wiley spectral library chemical compound search ... chemical name, InChI, InChI key, nominal mass, or molecular formula (Hill order)  ...

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Compound Name Formula Search -- EndMemo


Chemical Compounds Lookup by Name or Formula.

Chemical Search - Organic Chemistry Portal


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

Chemical Search - Organic Chemistry Portal


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