The International Journal of Molecular Sciences is a peer-reviewed open access scientific journal covering research in chemistry, molecular physics, and molecular biology. It is published by MDPI and was established in 2000. The journal is considered one of MDPI's flagship publications. The editor-in-chief is Maurizio Battino (Marche Polytechnic University). More than 1,000 people are on the journal's editorial board.

Special issues

In 2019, this journal published 500 special issues. According to Jack Grove in Inside Higher Ed, it planned 3,514 "special issues with a closing date in 2023" – nearly 10 per day.

Abstracting and indexing

The journal is abstracted and indexed in: • AGORA • CAB Abstracts • Chemical Abstracts • Current Contents/Physical, Chemical & Earth Sciences • EBSCO databases • EMBASE • Food Science and Technology Abstracts • Global Health • HINARI • Index Medicus/MEDLINE/PubMed • Polymer Library • Science Citation Index Expanded • Scopus According to the Journal Citation Reports, the journal has a 2022 impact factor of 5.6.