CLP Program - Acid Matrix Spike Solution Back Catalog number: 19173 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C17406500 cis-1,2,3,6-Tetrahydrophthalimide, certified, 0.25g Price on request 681702 Cefoxitin sodium salt, 250mg Price on request 71465 2-Methyl-2-butene Price on request