CLP Semi-Volatile - Low Conc Acid Control Back Catalog number: 20057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9399.19-100-ME Doxepin-d3 hydrochloride, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 347840-07-7 Price on request 71222 1,2,4,5-Tetramethylbenzene Price on request 2839.4-50-ME 3,3,4,4,4-Perfluorobutan-1-ol , 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 54949-74-5 Price on request