n-Nonanoic-9,9,9-d3 acid is labelled n-Nonanoic Acid (N649385) which is commonly used in conjunction with glyphosate, a non-selective herbicide, for a quick burn-down effect in the control of weeds in turfgrass. It is also used in the preparation of plasticizers and lacquers. Molecular Formula: C9H15D3O2 Molecular Weight: 161.26