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Chemical formula

en.wikipedia.org/wiki/Molecular_formula

A chemical formula is a way of expressing information about the proportions of atoms that ... From Wikipedia, the free encyclopedia. (Redirected from Molecular formula). Jump to: navigation, search....

Chemical Formula Search

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

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.

PubChem Structure Search

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

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

Chemical Search - Organic Chemistry Portal

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: ...

ChemSpider | Search and share chemistry

www.chemspider.com/

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

ChemExper Chemical Directory

www.chemexper.com/

The ChemExper Chemical Directory is a free service that allows to find a chemical by its molecular formula, IUPAC name, common name, CAS ... 2016 ChemExper Inc. – Search 11428926 different products from 2516 chemicals suppliers.

eMolecules

www.emolecules.com/

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

Chemical Identifier Search - ChemSpider

www.chemspider.com/Search.aspx

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

STN Easy Quick Tips - 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.

Substructure Search - Sigma-Aldrich

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

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

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Compound Name Formula Search -- EndMemo

www.endmemo.com

Chemical Compounds Lookup by Name or Formula.

Chemical Search - Organic Chemistry Portal

www.organic-chemistry.org

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

Chemical Structure Search - ChemSpider

www.chemspider.com

Search by Structure or Substructure. Upload a structure file or draw using a molecule editor.