Instrument Standard 6 Back Catalog number: 52083 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1899.17-K-ME Norcodeine hydrochloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 14648-14-7 Price on request 91703 EPA Method 502.2 Internal Standard Price on request 9139.9-100MG Gabapentin, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 60142-96-3 Price on request