Purpose: This paper aims to give a brief description of some chemistry portals available worldwide, followed by a description of the chemistry portal developed for Panjab University Library, Chandigarh (India). Design/methodology/approach: A well-structured chemistry portal was designed for chemistry and its allied departments at Panjab University based on studies of other chemistry portals worldwide. Findings: All the students, research scholars and faculty members of chemistry and allied subjects are deriving benefit from the use of this portal. Research limitations/implications: The paper provides information about chemistry portals available worldwide. However, only selected portals are presented. Moreover, the information sources included in the chemistry portal may also not be exhaustive. Practical implications: The paper would be of help to librarians who plan to develop such portals for other subjects. Originality/value: The success of the portal has led to a demand from other departments in the university for developing subject portals in their subject areas. (Contains 16 figures.)