Bis(4-hydroxyphenyl)methane Back Catalog number: 71994 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-537IS EPA Method 537 Internal Standard Primary Dilution Standard, in MeOH, 1,2ml Price on request 71058 tert-Butyl peroxide Price on request 12150.15-100-ME Oxadiazon,100 µg/mL,MeOH,1mL, Price on request