Internal Standard Solution, 1.2ml, nonane Back Catalog number: NK-IS-J4 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 10635.12-50-T 1,2,3,7,8,9-Hexachlorodibenzofuran Price on request 79453 Methoxyflurane Price on request 95367 Formaldehyde Price on request