Internal Reference Standard Back Catalog number: 52187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1753.12-100MG Dibenzothiophene sulfone, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1016-05-3 Price on request 73249 Tamoxifen Price on request GUM 11.1 Isooctane, Surface tension 18mN/m at 20C, 30ml Price on request