ChemiDplus is a free web database from the U.S. National Library of Medicine for looking up chemical names, structures, toxicity data, and related regulatory information.
NSTL is China's national science and technology library platform for searching literature, journals and technical reports and requesting document delivery.
Springer is a scientific and technical publishing platform offering books, journals, and research references used for study, literature review, and academic learning.
IGI Global is an academic publisher offering scholarly journals, reference works, and e-books across fields such as information science and technology.
ACM Digital Library is a web portal for computing research, hosting ACM journals, conference proceedings, magazines, and technical publications with searchable metadata and full-text access.
