AbstractPopowia is a genus of flowering plants in the family Annonaceae. There are about 50 species, widely distributed in tropical Africa, Madagascar, South India, Indonesia, China, Malaysia, and Australia [1]. Popowia pisocarpa (Blume) Endl. ex Walp., known locally in Malaysia as _anggar-kuan_ or _buah manggi_, is mainly distributed in Thailand, Peninsular Malaysia, Sumatra, Java, Borneo, Philippines, Celebes, Moluccas, and New Guinea. It is a shrub or tree up to 12 m tall and grows in undisturbed forests at an altitude of up to 1,250 meter. The flowers are fragrant and are used as a perfume [2]. Phytochemical analysis discovered the isolation of alkaloids [3] and flavonoids [4, 5]. However, a literature search did not reveal any reports on the essential oil composition of P. pisocarpa. The leaves of P. pisocarpa were collected from Langgun Island, Langkawi, in August 2023, and identified by a botanist, Shamsul Khamis. The voucher specimen (PL-01/23) was deposited at the Herbarium of UPSI. T.....