CAS Connections
CAS scientific data and CAS Newton agentic AI now integrate directly into the R&D platforms researchers already use.
See CAS Connections detailsThe world's scientific knowledge, working for your research in Japan
ACS International brings CAS's expert-curated scientific data, the agentic AI CAS Newton, and ACS Publications to research teams across Japan, with support based in Japan.
Finding the right scientific answer should not mean days of searching across scattered sources, or missing the one reference that changes your project's direction. ACS International is the Japan home of CAS and the American Chemical Society. We connect your team to reliable, expert-curated scientific data and agentic AI, with support right here in Japan.
What's new
CAS Newton
Conversational access to 150 years of interconnected scientific knowledge sets a new standard for trusted discovery.
See CAS Newton detailsAssets in Japanese
Coming events
CBI2026
OCT 29, CAS will co-sponsor the lunch-on seminar.
See CBI 2026 details and register
ACS Publications
ACS Publications is the publishing division of the American Chemical Society. It publishes the peer-reviewed journals that chemists and researchers around the world read and cite, including the Journal of the American Chemical Society (JACS). Through ACS International, research institutions in Japan can access ACS Publications journals alongside CAS's scientific data solutions, all from a single partner based in Japan.
Contacts
New inquiry
New to CAS? Tell us about your research needs and our Japan team will get back to you.
Existing customers
Already using CAS? Contact JAICI support below.
JAICI support desk
General service inquiries (invoices, contracts, training)
JAICI support desk
Technical inquiries
ACS International, Ltd. is the Japan entity of the ACS group and CAS.
CAS is the information division of the American Chemical Society, supporting research, development, and innovation through chemical information.
Faster, more confident innovation. CAS supports your challenges as the partner that connects scientific knowledge and business.
We organize and deliver the world's scientific information systematically, so researchers and companies can reach what they need quickly. That supports the discovery of new business opportunities, lower research and development risk, and higher-quality decisions.
CAS's strength lies in one of the world's foremost scientific databases, curated and structured by experts.