Abscisic acid by MP Biomedicals is a high grade reagent. This compound is a plant hormone. The reagent is available as a fine white powder which is soluble in methanol, aq NaHCO3, chloroform, acetone, ethyl, acetate ethyl, however it is slightly soluble in benzene, water and sparingly soluble in petroleum ether. Abscisic acid functions in various plant developmental processes, including bud dormancy, and can be involved in stress responses. This isoprenoid plant hormone is synthesized in the plastidal 2-C-methyl-D-erythritol-4-phosphate (MEP) pathway. CAS No. 71-44-3 Quantity Provided: 25 mg per pack Molecular Formula: C10H26N4 Molecular Weight 202.3 Soluble in methanol Abscisic acid is widely used in chemical and biological sectors. Abscisic Acid plays a regulatory role in hosts of physiological processes in all higher, as well as in lower plants. It mediates the stress tolerance responses in higher plants, and is a key signal compound that regulates stomatal aperture and, in concert with other plant signalling compounds, is implicated in mediating responses to pathogens and wounding. In seeds, Abscisic acid promotes seed development, embryo maturation, synthesis of storage products (proteins and lipids), desiccation tolerance, is involved in maintenance of dormancy (inhibition of germination), and apoptosis.