One of the most exciting additions to our catalogue is a broad range of Alkynes. Alkynes are a structural feature present across a wide range of therapeutic areas including the antiretroviral Efavirenz –US91018192B2 (Gilead) for the treatment of HIV infection and the antifungal Terbinafinen WO2010086723A1 (Galderma). Alkynes are also found in antitumor drugs, with molecules containing the ene-diyne structure acting as highly aggressive antitumor drugs generating radical intermediates that attack the DNA of the tumour. Alkynes are a structural feature used in drug discovery for its participation in the Huisgen azide−alkyne 1,3-dipolar cycloaddition reaction, an example of ‘click chemistry’. As well as being incredibly useful for synthetic chemistry ‘click chemistry’ is frequently used in bioconjugation and can be used to attach fluorophores and other reporter molecules to biomolecules. Please examine a sample of our Alkynes. The full range of Alkynes can be viewed by using our class search tool.