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 BB-52 2,2',5,5'-Tetrabromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request 691084 D4-Benzyl butyl phthalate, 10mg Price on request 91004 EPA Method 8270C Pesticide Mix #24 Price on request