Calcium Hardness Back Catalog number: 54143 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3139.14-K-IO Tetradecanoic acid (Myristic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 544-63-8 Price on request 678943 Dinoterb, 10 µg/ml, Acetonitrile, 10ml Price on request 681044 Dichlorprop-methyl ester, 100mg Price on request