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

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

Water is an oxygen hydride consisting of an oxygen atom that is covalently bonded to two hydrogen atoms It has a role as an amphiprotic solvent, a member of greenhouse gas, a …

Fentanyl is a monocarboxylic acid amide resulting from the formal condensation of the aryl amino group of N-phenyl-1- (2-phenylethyl)piperidin-4-amine with propanoic acid. It has a role as an …

D-glucopyranose is a glucopyranose having D-configuration. It has a role as a human metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a mouse …

PERIODIC TABLE OF ELEMENTSElectronegativity 18

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 …

Acetaminophen (paracetamol), also commonly known as Tylenol, is the most commonly taken analgesic worldwide and is recommended as first-line therapy in pain conditions by the World …