Alkalinity as Calcium Carbonate Back Catalog number: 54242 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended E509000 Elvitegravir, 25mg Price on request 674602 Clodinafop free acid, 10.0 µg/ml, Acetonitrile, Price on request 677442 Spirotetramat-mono-hydroxy, 100 µg/ml, Acetonitri Price on request