Method 1640 Tuning Standard Back Catalog number: 52147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1440.13-1G 4-n-Heptylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 1987-50-4 Price on request 673016 Progesterone, 250mg Price on request EHBCD ε-1,2,5,6,9,10-Hexabromocyclododecane, 1.2ml x 50ug/ml, toluene Price on request