3,3’-Dimethoxybenzidine Back Catalog number: 70921 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4502-20-25IO Phosphorous Standards Phosphorus in Isooctane Tri-n-butylphosphate, 99+% (Chiron product nr. 1399.19) CAS [126-73-8] Matrix: Isooctane , 20cSt Units: 1x25mL, 1x100mL Isooctane Price on request 678978 Diethyl phthalate, 500mg Price on request 94008 EPA Method 8150 - Methyl Derivatives Price on request