Melamine (13C3,99%; Amino-15N3,98%) 100 µg/mL in Water, 1,2ml Back Catalog number: CNLM-8150-1.2 Availability: In the manufacturer's stock Price on request - + Recommended 676437 Pyriofenone, 10mg Price on request 52250A Method 200.7 Single Element Kit Price on request 2538.14-100-ME Naproxen, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 22204-53-1 Price on request