EPA Method 527 Surrogate Standard Back Catalog number: 95053 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12127.13-100-ME Lenacil,100 µg/mL,MeOH,1mL, Price on request D296500 D,L-O-Desmethyl Venlafaxine, 5mg Price on request 54115 Chloride (Cl-) Price on request