WP Total Hardness Back Catalog number: 54156 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66169 3,3',4,4',5,5'-Hexachlorobiphenyl (169) Price on request P-081S BHC (Tech), 100µg/ml in MeOH, 1ml Price on request 10104.6-100MG N-(2-Hydroxyethyl)-2[(2hydroxyethyl)amino]acetamide, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 144236-39-5 Price on request