Acids Calibration Level 5 Back Catalog number: 94842 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679521 13C6-Sulfadiazine, 10mg Price on request 682169 (-)-delta-9-THC, 10.0 µg/ml, Methanol, 1ml Price on request A617000-5MG 2-Amino-1-methyl-6-phenylimidazo[4,5-b]py ridine (PhIP), 5mg Price on request