Related Experiment Video
Updated: May 5, 2026

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
Molecules in Wikipedia: Analysis of Their Chemical Diversity, Functional Roles, and Popularity
1Ertl Molecular, Oberwilerstrasse 8, CH-4142 Muenchenstein, Switzerland.
Abstract:
Wikipedia is one of the most widely accessed sources of information worldwide, containing nearly 25,000 molecular entries spanning drugs, natural products, specialty chemicals, and other compounds. Despite its prominence, the chemical content of Wikipedia has not been systematically studied. In this work, we analyzed molecular entries and classified them into use categories, providing a first overview of their roles and applications. Structural diversity was examined using scaffold analysis and UMAP visualization, which revealed well-defined clusters corresponding to major chemical classes. In addition, Wikipedia pageview statistics were analyzed to explore the popularity of molecular entries. These data revealed a strong public focus on CNS-active drugs, recreational substances, and molecules with current medical or cultural relevance, while industrial and specialty chemicals attracted comparatively little attention. Overall, our findings show that Wikipedia offers both a chemically diverse and socially informative perspective on molecules, making it a unique resource at the intersection of chemistry, open data, and public knowledge.
Related Concept Videos
Molecular Models
Chemistry of the Cell
Water
The polarity of the water molecule and its resulting hydrogen bonding makes water a unique substance with special properties that are intimately tied to the processes of life. Life originally evolved in an aqueous environment, and most of an organism’s cellular chemistry and metabolism occur inside the aqueous contents of the cell’s cytoplasm. Special properties of water are its high heat capacity...
Introduction to Functional Groups
Functional groups are group of atoms with specific chemical properties that occur within organic molecules and sometimes denoted as “R”. Functional groups are found along the carbon backbone of macromolecules can form chains or rings of carbon atoms. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of common functional groups
The table below summarizes some of the major functional groups in...
Overview of Advanced Functional Groups
Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of Advanced Functional Groups
The table below summarizes some of the major functional groups in organic chemistry.
Polymers: Defining Molecular Weight
The number average molecular weight (Mn) is the summation of the number...
Polymers: Molecular Weight Distribution

