beta-BHC Back Catalog number: 79047 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91784 Primary Calibration PID (VPH) Price on request C11430000 4-Chloro-2-methylaniline, 250mg Price on request 93624 MA - VPH Matrix Spike #2 Rev 1.1 Price on request