ACS International

The world's scientific knowledge, working for your research in Japan

ACS International brings CAS expert-curated scientific data, the agentic AI CAS Newton, and ACS Publications to research teams across Japan, with support based in Japan. We connect your team to reliable scientific data and agentic AI, so finding the right answer no longer means days of searching across scattered sources.

Colorful abstract wave of glowing particles in purple, blue, and green on dark background.

What's new

CAS Connections

CAS scientific data and CAS Newton agentic AI now integrate directly into the R&D platforms researchers already use.

CAS Newton

Conversational access to 150 years of interconnected scientific knowledge sets a new standard for trusted discovery.

Assets in Japanese

Japanese-language material 1

Japanese-language material 2

Japanese-language material 3

Japanese-language material 4

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 scientific data solutions, all from a single partner based in Japan.

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)

Tel 0120-151-462

Mail: customer@jaici.or.jp

JAICI support desk

Technical inquiries

Tel 0120-003-462

Mail: support@jaici.or.jp

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.