PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and …

Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, …

PubChem homepage provides a quick search functionality allowing many different input types in a single search box and providing results accross multiple data collections.

GHS, the Globally Harmonized System of Classification and Labeling of Chemicals, was developed by the United Nations as a way to bring into agreement the chemical regulations …

Explore how ionization energy changes with atomic number in the periodic table of elements via interactive plots.

Chemical element, Tin, information from authoritative sources. Look up properties, history, uses, and more.

Periodic Table element Summary Molybdenum Molybdenum is a chemical element with symbol Mo and atomic number 42. Classified as a transition metal, Molybdenum is a solid at 25°C …

Explore how boiling point changes with atomic number in the periodic table of elements via interactive plots.

Methamphetamine is a member of the class of amphetamines in which the amino group of (S)-amphetamine carries a methyl substituent. It has a role as a neurotoxin, a psychotropic drug, a …

Explore how atomic mass changes with atomic number in the periodic table of elements via interactive plots.