Pyrene Back Catalog number: X9186 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675159 Chlorthal-dimethyl, 250mg Price on request 8481.22-500MG Diltiazem hydrochloride, neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 33286-22-5 Price on request 71167 Methyl-4-Chlorophenoxyacetate Price on request