CLP Semi-Volatile Acid Surrogate Standard Back Catalog number: 20015 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10900.17-K-DS Promethazine hydrochloride,1000 µg base/mL,DMSO,1mL Price on request 94728 4,4’-Diamino-3,3’-dimethyldiphenylmethane Price on request 679337 Sotalol hydrochloride, 100mg Price on request