Product Code Pack Size Sterling Euros Dollars      44089  1g  £80  €124  $164   4-Methylumbelliferyl nonanoate 4MU nonanoate CAS: 18319-93-2 MF: C19H24O4 MW: 316.40 TLC Single spot. Free 4MU < 100ppm. Lipase substrate: T.J. Jacks and H.W. Kircher, Anal. Biochem., 21, 279 (1967).