advancing excellence, connecting chemical scientists and shaping the future of the chemical sciences for the benefit of humanity.

explore the chemical elements through this periodic table

the definitive online periodic table reference site including technical data, and photographs and descriptions of thousands of samples of the chemical elements.

award winning periodic table with user-friendly element data and facts. cool online chemistry videos, dictionary, tools, etc.

are you wondering what's new and what we're working on at science notes? here's a running update.

acs is one of the world’s largest scientific societies and the premier home of chemistry professionals. find career opportunities, educational resources, professional development, and much more.

chem4kids.com! the site that teaches the basics of chemistry to everyone! tutorials on matter, atoms, elements, the periodic table, reactions, and biochemistry.

everything for chemists: from the periodic system in online and pdf versions, to online calculators and free software for chemists. english-croatian chemistry dictionary and glossary is always at hand.

中国化学会是从事化学或与化学相关专业的科技、教育工作者自愿组成并依法注册登记的学术性、公益性团体，中国科学技术协会的组成部分，我国发展化学科学技术的重要社会力量。

chemistry education non-profit showcasing elements, reactions, experiments and tutorials. we make chemistry fun and easy to understand.