Anions Mix Back Catalog number: 59142 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1234.6-1ML 2,2-Dimethylbutane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 75-83-2 Price on request 25002 EPA Method 8260 - Surrogate Standard Price on request 9001.21-100-ME Progesterone, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 57-83-0 Price on request