Internal & Surrogate Standard Back Catalog number: 97790 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3808.15-K-MX Monobenzyl phthalate, 1000µg/mL, Solvent-dichloromethane/cyclohexane, Unit 1mL, # of units-1, Cas.no. 2528-16-7 Price on request L487550 Lycorine Hydrochloride , 50mg Price on request C14940300 Metamitron-desamino, 10mg Price on request