Abstract An aluminium based metal-organic framework (MOF) (CAU-10-V-H, 1, CAU stands for Christian-Albrechts-University) was designed and synthesized by employing 5-vinyl isophthalic acid (H2IPA-V) and 1,3-benzenedicaroxylic acid (H2IPA) in 1:1 molar ratio. The compound was thoroughly characterized by a number of analytical tools. The desolvated form of the material (1′) showed great sensing performance towards Pd2+ and H2S. Instant quenching of HEPES buffer suspension of 1′ was observed in presence of H2S due to formation of ground state complex by the strong interaction between H2S and vinyl functionality. In addition, 1′ could selectively detect Pd2+ in aqueous medium with excellent sensitivity (LOD = 110 nM). The “turn-off” behavior of the material might be attributed to the interaction between Pd2+ and vinyl functional group. In addition, the XRPD pattern remains unchanged after the sensing of both H2S and Pd2+. Hence, the present material is an effective dual fluorescent probe for the detection of H2S and Pd2+.