EPA Method 525 Internals & Surrogates Back Catalog number: 95227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10160.12-50MG Carisoprodol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 78-44-4 Price on request 97680 PAH Spike Stock Price on request 71426 3,4,5,6-Tetrahydro-2-pyrimidinethiol Price on request