Sulfamethoxazole, 1000µg/ml in MeOH, 1ml Back Catalog number: 72604 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2943.9-100-IO EPTC-d14 (dipropyl-d14), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 759-94-4 Price on request 19394 EPA Method 8021B Internal Standard Price on request 679703 13C3-Melamine, 10mg Price on request