About Us
Authority and comprehensiveness: An authoritative intelligent research platform for chemistry and related disciplines produced by Chemical Abstracts Service (CAS). An international team of scientists tracks global scientific and technological advancements daily, compiling, indexing, and managing content such as patents and scientific journals worldwide. Coverage spans literature published in over 180 countries and 50+ languages, along with patents from 109 patent granting authorities. It encompasses multidisciplinary and interdisciplinary scientific information across chemistry, biology, medicine, materials science, food science, applied chemistry, chemical engineering, agriculture, polymer science, physics, and more. Document types include journals, patents, conference papers, theses, books, technical reports, reviews, preprints, and web resources.
Data Richness: The next-generation SciFinder platform, CAS SciFinder^{n}, encompasses 59 million chemical and related discipline documents, 204 million chemical substances, 150 million chemical reactions, 1.39 million Markush structures from patents, 850 million biological sequences, commercial chemical information, and regulatory data, with historical coverage dating back to 1840.
Functional Features: As an industry-leading relevance-based search engine, it supports grant proposal literature preparation, experimental planning for new projects, academic collaboration searches, retrosynthetic analysis, and numerous other teaching and research activities. CAS REGISTRY is the world's largest repository of substance data, cataloging over 274 million unique substances (including alloys, complexes, minerals, mixtures, polymers, and salts) publicly disclosed since the early 19th century. Its CAS Registry Numbers are recognized as the gold standard for chemical substances, widely used in scientific research and commercial processes. The platform also integrates CAS Analytical Methods (covering chemical analysis methods from journals, offering search and comparison functions to quickly obtain laboratory procedures, supporting teaching and experiments in forensic science, food science, agronomy, pharmaceuticals, environmental studies, and more) and the formulation (formulation) solution CAS Formulus (covering formulation information indexed from journals and patents across pharmaceuticals, cosmetics, food, agrochemicals, inks, coatings, and more, enabling retrieval of formulations along with their processes, ingredients, etc.).
Data Richness: The next-generation SciFinder platform, CAS SciFinder^{n}, encompasses 59 million chemical and related discipline documents, 204 million chemical substances, 150 million chemical reactions, 1.39 million Markush structures from patents, 850 million biological sequences, commercial chemical information, and regulatory data, with historical coverage dating back to 1840.
Functional Features: As an industry-leading relevance-based search engine, it supports grant proposal literature preparation, experimental planning for new projects, academic collaboration searches, retrosynthetic analysis, and numerous other teaching and research activities. CAS REGISTRY is the world's largest repository of substance data, cataloging over 274 million unique substances (including alloys, complexes, minerals, mixtures, polymers, and salts) publicly disclosed since the early 19th century. Its CAS Registry Numbers are recognized as the gold standard for chemical substances, widely used in scientific research and commercial processes. The platform also integrates CAS Analytical Methods (covering chemical analysis methods from journals, offering search and comparison functions to quickly obtain laboratory procedures, supporting teaching and experiments in forensic science, food science, agronomy, pharmaceuticals, environmental studies, and more) and the formulation (formulation) solution CAS Formulus (covering formulation information indexed from journals and patents across pharmaceuticals, cosmetics, food, agrochemicals, inks, coatings, and more, enabling retrieval of formulations along with their processes, ingredients, etc.).