Nitrite (NO2-) as N Back Catalog number: 59478 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3476.21-100 Permethrin, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 52645-53-1 Price on request 80413 EPA Method 8040 - Surrogate Standard Mix Price on request 675876 Triazophos, 100 µg/ml, Cyclohexane, 5ml Price on request