EPA Method 525.2 - 526 Internal Standard Back Catalog number: 91297 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66167 PCB No. 167, 100µg/ml in Isooctane, 1ml Price on request S-4218-2K-10ME BTEX Mixture 2 6 Analytes, each 2000 µg/mL in methanol; units:1x1 mL, 1x5mL 1300.6 Benzene [71-43-2] 1267.8 o-Xylene [95-47-6] 1264.7 Toluene [108-88-2] 1266.8m-Xylene [108-38-3] 1268.8 Ethylbenz Price on request O635006 Omeprazole-d3 (benzimidazole-4,6,7-d3), 5mg Price on request