WP Total Hardness Back Catalog number: 54597 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1222.16-1G Di-n-octylsulfide, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 2690-08-6 Price on request 9402.16-10MG Norfluoxetine hydrochloride, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 57226-68-3 Price on request 681481 Diethylene glycol dimethyl ether, 1ml Price on request