Internal standard 2, 2000g/ml in MeOH, 1ml Back Catalog number: 30068 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 679340 Citalopram hydrobromide, 10mg Price on request 12069.12-250MG Sulfamethazine,neat,neat,250mg, Price on request 95405 Aroclor 1248 & Tetrachloro-m-xylene Price on request