Chemical Structures


MMsINC is a free web-oriented database of commercially-available compounds for virtual screening and chemoinformatic applications. MMsINC contains over 4 million non-redundant chemical compounds in 3D formats.



This database allows users to search the NLM ChemIDplus database of over 370,000 chemicals. A user may enter compound identifiers such as Chemical Name, CAS Registry Number, Molecular Formula, Classification Code, Locator Code, and Structure or Substructure. New searchable features include search and display by Toxicity indicators such as Median Lethal Dose (LD50), by Physical/Chemical Properties such as LogP, and by Molecular Weight. 


ChemBioFinder is an online chemistry and biology reference database. With almost 2 million compounds indexed and linked to other web sites, it provides a wealth of chemical information for professional chemists and students alike. is the gateway to all databases available from CambridgeSoft from PerkinElmer.


Compendium of Pesticide Common Names 

This Compendium is believed to be the only place where all of the ISO-approved standard names of chemical pesticides are listed. It also includes more than 300 approved names from national and international bodies for pesticides that do not have ISO names.



Helping you to understand Chemistry. 


University of Rochester – Properties of Substances 

Resources especially selected for students and professors about chemistry.


CHEMINFO Indiana University 

Chemistry nomenclature aids in the IUB chemistry library.


IUPAC Glossary of Class Names 

Glossary of class names of organic compounds and reactive intermediates based on structure.