EPA Method 527 Surrogate Standard Back Catalog number: 95053 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97586 Amine Mix, 500µg/ml in MeOH, 1ml Price on request 677591 Methylmalonic acid, 250mg Price on request C225403-1MG Catharanthine-d3 Tartrate Salt, 1mg Price on request