Potassium Sulfate Back Catalog number: 50041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 68C-IS Labelled Injection/Internal Standard Stock Solution, 1.2ml, nonane Price on request 675097 n-Tridecylbenzene, 100mg Price on request 681388 Quinmerac, 100mg Price on request