Major bilary metabolite of cysteinyl leukotrienes in the rat. Approximately 100-fold less active than LTC4. Equiactive with LTE4 in guinea pig lung parenchyma assay. Product Specification MW:481.7 CAS:80115-95-3 Formulation:Liquid. 50 µg/ml in methanol/ammonium acetate buffer 70:30, pH=5.6. Purity:98% Long Term Storage:-80°C