Butyric acid, 250μg/ml in Water, 1ml Back Catalog number: 31796-1 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-A200 Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 200ng/ml , nonane Price on request 79236 2,4-Dichlorophenylacetic acid Price on request 95207 Fluoranthene Price on request