CLP Semi-Volatile Acid Surrogate Standard Back Catalog number: 20005 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72345 1-(3,5-Dichlorophenyl)urea Price on request 51072 ASTM D-4815 Internal Standard Price on request 1334.5-100MG 2-Methyltetrahydrothiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1795-09-1 Price on request