Internal Standards Mix 33, 2000 ng/µl, 1ml Back Catalog number: YA08273300TO Availability: In the manufacturer's stock Price on request - + Recommended 71288 1,6-Dimethylnaphthalene Price on request 71540 2-Furaldehyde (Furfural) Price on request 8991.X-10G Naphthenic acids, pract,neat,neat,10g Price on request